WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Abbey Dore 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Abbey Dore

Herefordshire, United Kingdom

Long range weather outlook for Abbey Dore includes 14 day forecast summary:

Over the next 14 days the Abbey Dore forecast suggests the average daytime maximum temperature will be around 17°C, with a high for the two weeks of 20°C expected on the afternoon of Saturday 18th. The average minimum temperature will be 8°C, dipping to its lowest on the morning of Tuesday 21st at 4°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. Current predictions suggest Wednesday 22nd will have the most precipitation with an accumulation of around 18.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 15
May
18:00

SE
SE

9 / 13 mph 61 / 59°F 81% 1004 mb
Low level cloud: 1%
Mid level cloud: 19%
High level cloud: 1%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

3 / 7 mph 50 / 48°F 92% 1006 mb
Low level cloud: 2%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 16
May
00:00

E
E

2 / 4 mph 46 / 46°F 93% 1007 mb
Low level cloud: 21%
Mid level cloud: 13%
High level cloud: 16%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

3 / 6 mph 44 / 44°F 93% 1007 mb
Low level cloud: 37%
Mid level cloud: 10%
High level cloud: 22%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

3 / 5 mph 50 / 49°F 92% 1007 mb
Low level cloud: 24%
Mid level cloud: 20%
High level cloud: 100%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

5 / 6 mph 58 / 57°F 84% 1007 mb
Low level cloud: 45%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

7 / 9 mph 60 / 59°F 83% 1007 mb
Low level cloud: 54%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

5 / 6 mph 56 / 56°F 91% 1007 mb
Low level cloud: 22%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

NW
NW

5 / 6 mph 54 / 52°F 97% 1006 mb
Low level cloud: 51%
Mid level cloud: 81%
High level cloud: 57%
Most Significant Cloud Type: low
85%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

W
W

3 / 5 mph 53 / 51°F 97% 1006 mb
Low level cloud: 45%
Mid level cloud: 96%
High level cloud: 33%
Most Significant Cloud Type: low
82%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Fri 17
May
00:00

WSW
WSW

3 / 4 mph 51 / 51°F 96% 1006 mb
Low level cloud: 47%
Mid level cloud: 66%
High level cloud: 67%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

2 / 4 mph 51 / 51°F 95% 1006 mb
Low level cloud: 76%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

3 / 4 mph 53 / 52°F 95% 1007 mb
Low level cloud: 48%
Mid level cloud: 71%
High level cloud: 100%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

1 / 1 mph 57 / 57°F 89% 1008 mb
Low level cloud: 87%
Mid level cloud: 46%
High level cloud: 86%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

2 / 3 mph 63 / 62°F 80% 1009 mb
Low level cloud: 67%
Mid level cloud: 44%
High level cloud: 12%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

4 / 6 mph 67 / 64°F 75% 1010 mb
Low level cloud: 59%
Mid level cloud: 23%
High level cloud: 14%
Most Significant Cloud Type: low
68%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

NW
NW

3 / 4 mph 66 / 63°F 84% 1011 mb
Low level cloud: 18%
Mid level cloud: 12%
High level cloud: 45%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

2 / 5 mph 54 / 52°F 92% 1013 mb
Low level cloud: 44%
Mid level cloud: 7%
High level cloud: 33%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May
00:00

N
N

3 / 7 mph 49 / 49°F 95% 1013 mb
Low level cloud: 36%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

4 / 8 mph 48 / 47°F 97% 1014 mb
Low level cloud: 58%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

4 / 6 mph 54 / 52°F 96% 1015 mb
Low level cloud: 62%
Mid level cloud: 7%
High level cloud: 32%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

6 / 7 mph 61 / 60°F 86% 1015 mb
Low level cloud: 86%
Mid level cloud: 10%
High level cloud: 33%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

7 / 8 mph 69 / 65°F 72% 1015 mb
Low level cloud: 56%
Mid level cloud: 5%
High level cloud: 11%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

9 / 11 mph 68 / 65°F 77% 1014 mb
Low level cloud: 56%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

9 / 13 mph 63 / 61°F 90% 1015 mb
Low level cloud: 21%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
30%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NNW
NNW

7 / 14 mph 53 / 50°F 96% 1016 mb
Low level cloud: 72%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May
00:00

NNW
NNW

5 / 11 mph 48 / 46°F 96% 1017 mb
Low level cloud: 30%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

5 / 11 mph 46 / 44°F 97% 1017 mb
Low level cloud: 62%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

6 / 8 mph 54 / 50°F 94% 1017 mb
Low level cloud: 53%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

9 / 10 mph 57 / 54°F 88% 1018 mb
Low level cloud: 88%
Mid level cloud: 19%
High level cloud: 6%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

10 / 12 mph 60 / 60°F 82% 1018 mb
Low level cloud: 95%
Mid level cloud: 26%
High level cloud: 7%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

11 / 13 mph 63 / 61°F 75% 1017 mb
Low level cloud: 62%
Mid level cloud: 3%
High level cloud: 8%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

11 / 14 mph 59 / 56°F 83% 1018 mb
Low level cloud: 20%
Mid level cloud: 4%
High level cloud: 20%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

8 / 17 mph 51 / 47°F 86% 1019 mb
Low level cloud: 90%
Mid level cloud: 3%
High level cloud: 17%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May
00:00

NNE
NNE

6 / 11 mph 44 / 41°F 96% 1020 mb
Low level cloud: 33%
Mid level cloud: 5%
High level cloud: 37%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

6 / 11 mph 42 / 38°F 98% 1020 mb
Low level cloud: 81%
Mid level cloud: 19%
High level cloud: 30%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

8 / 10 mph 47 / 42°F 89% 1021 mb
Low level cloud: 90%
Mid level cloud: 24%
High level cloud: 19%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

10 / 11 mph 54 / 50°F 74% 1020 mb
Low level cloud: 41%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

10 / 12 mph 59 / 56°F 64% 1019 mb
Low level cloud: 5%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

9 / 10 mph 62 / 60°F 62% 1018 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 4%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

6 / 8 mph 60 / 58°F 76% 1017 mb
Low level cloud: 17%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

3 / 6 mph 48 / 46°F 89% 1018 mb
Low level cloud: 7%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May
00:00

NE
NE

2 / 5 mph 44 / 43°F 92% 1018 mb
Low level cloud: 5%
Mid level cloud: 0%
High level cloud: 16%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

3 / 6 mph 40 / 38°F 94% 1017 mb
Low level cloud: 13%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

3 / 4 mph 44 / 43°F 92% 1017 mb
Low level cloud: 42%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

5 / 6 mph 51 / 49°F 83% 1016 mb
Low level cloud: 82%
Mid level cloud: 28%
High level cloud: 42%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

6 / 7 mph 59 / 56°F 69% 1015 mb
Low level cloud: 6%
Mid level cloud: 44%
High level cloud: 13%
Most Significant Cloud Type: medium
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

5 / 6 mph 65 / 62°F 67% 1013 mb
Low level cloud: 26%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

4 / 5 mph 60 / 60°F 84% 1013 mb
Low level cloud: 84%
Mid level cloud: 29%
High level cloud: 1%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

5 / 10 mph 52 / 50°F 95% 1014 mb
Low level cloud: 78%
Mid level cloud: 42%
High level cloud: 11%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 22
May
00:00

W
W

8 / 17 mph 51 / 47°F 92% 1009 mb
Low level cloud: 87%
Mid level cloud: 39%
High level cloud: 93%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NE
NE

3 / 6 mph 50 / 50°F 96% 1013 mb
Low level cloud: 97%
Mid level cloud: 78%
High level cloud: 6%
Most Significant Cloud Type: low
100%
0.0 In
12:00

N
N

7 / 14 mph 56 / 54°F 96% 1012 mb
Low level cloud: 100%
Mid level cloud: 79%
High level cloud: 86%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NNE
NNE

8 / 17 mph 58 / 56°F 92% 1013 mb
Low level cloud: 85%
Mid level cloud: 45%
High level cloud: 4%
Most Significant Cloud Type: low
100%
0.0 In
Thu 23
May
00:00

NNW
NNW

3 / 6 mph 54 / 54°F 97% 1014 mb
Low level cloud: 87%
Mid level cloud: 30%
High level cloud: 98%
Most Significant Cloud Type: low
100%
0.0 In
06:00

S
S

6 / 12 mph 53 / 51°F 94% 1020 mb
Low level cloud: 35%
Mid level cloud: 6%
High level cloud: 63%
Most Significant Cloud Type: low
44%
0.0 In
12:00

N
N

13 / 28 mph 52 / 47°F 83% 1023 mb
Low level cloud: 82%
Mid level cloud: 63%
High level cloud: 83%
Most Significant Cloud Type: low
100%
0.0 In
18:00

ENE
ENE

15 / 31 mph 65 / 65°F 90% 1017 mb
Low level cloud: 52%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
62%
0.0 In
Fri 24
May
00:00

NNE
NNE

13 / 27 mph 50 / 45°F 90% 1022 mb
Low level cloud: 98%
Mid level cloud: 50%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
06:00

N
N

6 / 12 mph 48 / 46°F 95% 1021 mb
Low level cloud: 50%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
49%
0.0 In
12:00

ENE
ENE

5 / 10 mph 57 / 56°F 98% 1021 mb
Low level cloud: 100%
Mid level cloud: 76%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

ENE
ENE

8 / 16 mph 64 / 64°F 82% 1018 mb
Low level cloud: 15%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
14%
0.0 In
Sat 25
May
00:00

S
S

4 / 8 mph 56 / 55°F 94% 1021 mb
Low level cloud: 22%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
25%
0.0 In
06:00

N
N

3 / 6 mph 54 / 55°F 90% 1020 mb
Low level cloud: 2%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: low
2%
0.0 In
12:00

S
S

11 / 23 mph 62 / 62°F 75% 1019 mb
Low level cloud: 80%
Mid level cloud: 16%
High level cloud: 100%
Most Significant Cloud Type: low
97%
0.0 In
18:00

NW
NW

4 / 10 mph 65 / 65°F 83% 1017 mb
Low level cloud: 76%
Mid level cloud: 44%
High level cloud: 9%
Most Significant Cloud Type: low
91%
0.0 In
Sun 26
May
00:00

ESE
ESE

1 / 2 mph 54 / 54°F 93% 1019 mb
Low level cloud: 11%
Mid level cloud: 5%
High level cloud: 12%
Most Significant Cloud Type: low
13%
0.0 In
06:00

NNW
NNW

4 / 8 mph 58 / 58°F 92% 1018 mb
Low level cloud: 14%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
15%
0.0 In
12:00

ENE
ENE

12 / 25 mph 69 / 69°F 79% 1018 mb
Low level cloud: 99%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

N
N

7 / 15 mph 56 / 55°F 91% 1018 mb
Low level cloud: 92%
Mid level cloud: 26%
High level cloud: 5%
Most Significant Cloud Type: low
100%
0.1 In
Mon 27
May
00:00

NE
NE

8 / 18 mph 55 / 53°F 98% 1019 mb
Low level cloud: 78%
Mid level cloud: 3%
High level cloud: 19%
Most Significant Cloud Type: low
81%
0.1 In
06:00

WNW
WNW

3 / 7 mph 51 / 50°F 85% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 96%
Most Significant Cloud Type: high
96%
0.0 In
12:00

ENE
ENE

18 / 37 mph 64 / 64°F 64% 1019 mb
Low level cloud: 44%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: low
46%
0.0 In
18:00

NW
NW

9 / 19 mph 59 / 59°F 80% 1019 mb
Low level cloud: 34%
Mid level cloud: 23%
High level cloud: 4%
Most Significant Cloud Type: low
42%
0.0 In
Tue 28
May
00:00

NNW
NNW

10 / 21 mph 47 / 43°F 90% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
06:00

NW
NW

4 / 9 mph 50 / 49°F 89% 1022 mb
Low level cloud: 3%
Mid level cloud: 3%
High level cloud: 32%
Most Significant Cloud Type: medium
12%
0.0 In
12:00

N
N

9 / 19 mph 53 / 50°F 96% 1007 mb
Low level cloud: 98%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.2 In
18:00

NW
NW

10 / 21 mph 55 / 53°F 75% 1022 mb
Low level cloud: 8%
Mid level cloud: 51%
High level cloud: 72%
Most Significant Cloud Type: medium
75%
0.0 In
Wed 29
May
00:00

NE
NE

8 / 17 mph 54 / 51°F 99% 1008 mb
Low level cloud: 91%
Mid level cloud: 44%
High level cloud: 73%
Most Significant Cloud Type: low
100%
0.0 In
06:00

WSW
WSW

6 / 12 mph 49 / 47°F 89% 1020 mb
Low level cloud: 4%
Mid level cloud: 20%
High level cloud: 49%
Most Significant Cloud Type: medium
33%
0.0 In
12:00

ENE
ENE

6 / 12 mph 58 / 57°F 98% 1006 mb
Low level cloud: 98%
Mid level cloud: 35%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.1 In
18:00

W
W

13 / 28 mph 57 / 54°F 76% 1016 mb
Low level cloud: 3%
Mid level cloud: 73%
High level cloud: 45%
Most Significant Cloud Type: medium
82%
0.0 In
Thu 30
May
00:00

SW
SW

2 / 5 mph 55 / 55°F 95% 1007 mb
Low level cloud: 26%
Mid level cloud: 18%
High level cloud: 4%
Most Significant Cloud Type: low
32%
0.0 In
06:00

WSW
WSW

6 / 12 mph 54 / 53°F 91% 1014 mb
Low level cloud: 92%
Mid level cloud: 29%
High level cloud: 54%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SW
SW

6 / 13 mph 68 / 68°F 69% 1006 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 8%
Most Significant Cloud Type: low
40%
0.0 In
18:00

WNW
WNW

10 / 20 mph 58 / 56°F 80% 1014 mb
Low level cloud: 67%
Mid level cloud: 17%
High level cloud: 82%
Most Significant Cloud Type: low
82%
0.0 In

The day label given represents the local day relative to the local time for the location you are looking at.
(More Info)

Day

This time is corrected for local time zones and where possible for daylight saving times.
(More Info)

Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
(More Info)

Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
(More Info)

Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
(More Info)

Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
(More Info)

Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
(More Info)

Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
(More Info)

Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
(More Info)

Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
(More Info)

Pressure