WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Drumcask 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Drumcask

Cavan, Ireland

Long range weather outlook for Drumcask includes 14 day forecast summary:

For Drumcask in the coming two weeks 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 1st. The average minimum temperature will be 9°C, dipping to its lowest on the morning of Friday 31st at 5°C. Expect the next 14 days have most days seeing a little rain. The indicators are that Thursday 6th will have the most precipitation with an accumulation of around 5.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 29
May
18:00

WNW
WNW

9 / 10 mph 60 / 57°F 76% 1011 mb
Low level cloud: 36%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

7 / 11 mph 50 / 47°F 92% 1013 mb
Low level cloud: 79%
Mid level cloud: 36%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 30
May
00:00

NW
NW

8 / 11 mph 50 / 46°F 93% 1013 mb
Low level cloud: 88%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

7 / 13 mph 48 / 45°F 94% 1014 mb
Low level cloud: 64%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

11 / 14 mph 51 / 47°F 92% 1016 mb
Low level cloud: 99%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

11 / 13 mph 53 / 49°F 91% 1018 mb
Low level cloud: 99%
Mid level cloud: 44%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

13 / 16 mph 61 / 60°F 68% 1019 mb
Low level cloud: 73%
Mid level cloud: 13%
High level cloud: 11%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

11 / 13 mph 60 / 56°F 68% 1020 mb
Low level cloud: 70%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

10 / 12 mph 56 / 53°F 72% 1022 mb
Low level cloud: 70%
Mid level cloud: 2%
High level cloud: 62%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

9 / 12 mph 50 / 46°F 80% 1024 mb
Low level cloud: 41%
Mid level cloud: 81%
High level cloud: 56%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 31
May
00:00

NW
NW

5 / 9 mph 45 / 42°F 92% 1024 mb
Low level cloud: 37%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

4 / 8 mph 42 / 39°F 99% 1025 mb
Low level cloud: 43%
Mid level cloud: 1%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

4 / 5 mph 49 / 47°F 93% 1026 mb
Low level cloud: 34%
Mid level cloud: 25%
High level cloud: 87%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

7 / 8 mph 59 / 56°F 59% 1027 mb
Low level cloud: 0%
Mid level cloud: 48%
High level cloud: 18%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

9 / 10 mph 66 / 64°F 43% 1026 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 5%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

9 / 10 mph 67 / 64°F 43% 1027 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 4%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

7 / 9 mph 62 / 60°F 55% 1028 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 29%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

4 / 9 mph 47 / 44°F 88% 1029 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 35%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 01
Jun
00:00

NW
NW

3 / 7 mph 44 / 42°F 97% 1029 mb
Low level cloud: 5%
Mid level cloud: 7%
High level cloud: 35%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

3 / 7 mph 43 / 42°F 97% 1029 mb
Low level cloud: 13%
Mid level cloud: 6%
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

WNW
WNW

3 / 4 mph 50 / 49°F 90% 1030 mb
Low level cloud: 14%
Mid level cloud: 2%
High level cloud: 3%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

5 / 6 mph 63 / 60°F 53% 1030 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: high
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

6 / 7 mph 68 / 65°F 44% 1030 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: high
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

7 / 8 mph 67 / 65°F 44% 1030 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 14%
Most Significant Cloud Type: high
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

6 / 7 mph 63 / 61°F 54% 1031 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 21%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

4 / 8 mph 47 / 44°F 89% 1033 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 61%
Most Significant Cloud Type: high
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 02
Jun
00:00

WNW
WNW

3 / 6 mph 44 / 43°F 93% 1032 mb
Low level cloud: 14%
Mid level cloud: 90%
High level cloud: 16%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

3 / 5 mph 49 / 49°F 84% 1032 mb
Low level cloud: 53%
Mid level cloud: 30%
High level cloud: 46%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

3 / 3 mph 54 / 54°F 87% 1032 mb
Low level cloud: 93%
Mid level cloud: 4%
High level cloud: 47%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

4 / 5 mph 59 / 58°F 86% 1032 mb
Low level cloud: 88%
Mid level cloud: 11%
High level cloud: 18%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

6 / 7 mph 62 / 62°F 73% 1032 mb
Low level cloud: 98%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

6 / 8 mph 63 / 62°F 72% 1031 mb
Low level cloud: 89%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

5 / 6 mph 60 / 60°F 80% 1032 mb
Low level cloud: 93%
Mid level cloud: 10%
High level cloud: 9%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

4 / 5 mph 56 / 55°F 91% 1032 mb
Low level cloud: 87%
Mid level cloud: 8%
High level cloud: 9%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 03
Jun
00:00

W
W

3 / 4 mph 54 / 54°F 95% 1031 mb
Low level cloud: 82%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

4 / 5 mph 54 / 53°F 90% 1030 mb
Low level cloud: 96%
Mid level cloud: 5%
High level cloud: 9%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

3 / 4 mph 56 / 55°F 86% 1029 mb
Low level cloud: 93%
Mid level cloud: 9%
High level cloud: 16%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

5 / 6 mph 59 / 58°F 78% 1029 mb
Low level cloud: 96%
Mid level cloud: 18%
High level cloud: 67%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

6 / 7 mph 61 / 61°F 76% 1029 mb
Low level cloud: 91%
Mid level cloud: 12%
High level cloud: 86%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

7 / 8 mph 64 / 63°F 71% 1028 mb
Low level cloud: 91%
Mid level cloud: 30%
High level cloud: 46%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

6 / 7 mph 61 / 61°F 78% 1027 mb
Low level cloud: 91%
Mid level cloud: 7%
High level cloud: 5%
Most Significant Cloud Type: low
94%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

4 / 5 mph 55 / 55°F 92% 1027 mb
Low level cloud: 96%
Mid level cloud: 30%
High level cloud: 18%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 04
Jun
00:00

WSW
WSW

3 / 4 mph 54 / 54°F 96% 1026 mb
Low level cloud: 95%
Mid level cloud: 18%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

3 / 5 mph 52 / 52°F 97% 1025 mb
Low level cloud: 94%
Mid level cloud: 45%
High level cloud: 36%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

4 / 7 mph 51 / 50°F 95% 1025 mb
Low level cloud: 92%
Mid level cloud: 10%
High level cloud: 67%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

4 / 6 mph 54 / 53°F 87% 1024 mb
Low level cloud: 94%
Mid level cloud: 48%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

4 / 5 mph 58 / 57°F 88% 1024 mb
Low level cloud: 95%
Mid level cloud: 62%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

4 / 5 mph 59 / 59°F 90% 1023 mb
Low level cloud: 94%
Mid level cloud: 44%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

4 / 5 mph 58 / 57°F 88% 1022 mb
Low level cloud: 89%
Mid level cloud: 55%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

3 / 4 mph 56 / 56°F 98% 1021 mb
Low level cloud: 60%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Wed 05
Jun
00:00

W
W

5 / 11 mph 53 / 52°F 83% 1025 mb
Low level cloud: 65%
Mid level cloud: 1%
High level cloud: 7%
Most Significant Cloud Type: low
65%
0.0 In
06:00

W
W

2 / 4 mph 53 / 54°F 95% 1026 mb
Low level cloud: 56%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
57%
0.0 In
12:00

NW
NW

9 / 17 mph 59 / 59°F 48% 1026 mb
Low level cloud: 44%
Mid level cloud: 5%
High level cloud: 15%
Most Significant Cloud Type: low
47%
0.0 In
18:00

NW
NW

8 / 16 mph 62 / 62°F 56% 1023 mb
Low level cloud: 1%
Mid level cloud: 28%
High level cloud: 32%
Most Significant Cloud Type: medium
31%
0.0 In
Thu 06
Jun
00:00

SW
SW

2 / 5 mph 50 / 51°F 94% 1017 mb
Low level cloud: 94%
Mid level cloud: 68%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SSW
SSW

9 / 14 mph 51 / 48°F 85% 1004 mb
Low level cloud: 91%
Mid level cloud: 98%
High level cloud: 5%
Most Significant Cloud Type: low
100%
0.0 In
12:00

WNW
WNW

3 / 5 mph 76 / 77°F 41% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
6%
0.0 In
18:00

NNE
NNE

8 / 13 mph 60 / 60°F 52% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Fri 07
Jun
00:00

NE
NE

2 / 3 mph 50 / 50°F 97% 1005 mb
Low level cloud: 19%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
34%
0.0 In
06:00

NNW
NNW

5 / 9 mph 48 / 46°F 69% 1021 mb
Low level cloud: 77%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: low
77%
0.0 In
12:00

N
N

7 / 13 mph 51 / 49°F 98% 1007 mb
Low level cloud: 97%
Mid level cloud: 77%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
18:00

N
N

9 / 15 mph 56 / 54°F 52% 1022 mb
Low level cloud: 44%
Mid level cloud: 5%
High level cloud: 59%
Most Significant Cloud Type: low
52%
0.0 In
Sat 08
Jun
00:00

N
N

3 / 5 mph 52 / 52°F 99% 1007 mb
Low level cloud: 99%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
06:00

WNW
WNW

2 / 3 mph 48 / 48°F 85% 1023 mb
Low level cloud: 29%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.0 In
12:00

SSW
SSW

3 / 5 mph 62 / 62°F 73% 1004 mb
Low level cloud: 83%
Mid level cloud: 18%
High level cloud: 2%
Most Significant Cloud Type: low
89%
0.0 In
18:00

NW
NW

7 / 11 mph 59 / 59°F 51% 1020 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 1%
Most Significant Cloud Type: medium
7%
0.0 In
Sun 09
Jun
00:00

WNW
WNW

3 / 5 mph 48 / 48°F 98% 1000 mb
Low level cloud: 52%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NE
NE

1 / 1 mph 49 / 49°F 79% 1019 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

SW
SW

7 / 13 mph 55 / 53°F 87% 999 mb
Low level cloud: 67%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
73%
0.0 In
18:00

N
N

2 / 3 mph 69 / 69°F 48% 1017 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
0.0 In
Mon 10
Jun
00:00

SSW
SSW

4 / 8 mph 40 / 38°F 98% 1001 mb
Low level cloud: 6%
Mid level cloud: 18%
High level cloud: 6%
Most Significant Cloud Type: medium
35%
0.1 In
06:00

ESE
ESE

2 / 3 mph 52 / 52°F 83% 1019 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
12:00

SSW
SSW

9 / 19 mph 55 / 53°F 88% 1000 mb
Low level cloud: 82%
Mid level cloud: 46%
High level cloud: 1%
Most Significant Cloud Type: low
97%
0.1 In
18:00

WNW
WNW

2 / 2 mph 67 / 67°F 66% 1020 mb
Low level cloud: 62%
Mid level cloud: 43%
High level cloud: 2%
Most Significant Cloud Type: low
77%
0.0 In
Tue 11
Jun
00:00

SSE
SSE

4 / 9 mph 45 / 43°F 99% 1000 mb
Low level cloud: 83%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.2 In
06:00

SSE
SSE

2 / 3 mph 58 / 58°F 90% 1022 mb
Low level cloud: 11%
Mid level cloud: 20%
High level cloud: 7%
Most Significant Cloud Type: low
18%
0.0 In
12:00

S
S

8 / 16 mph 56 / 55°F 85% 1001 mb
Low level cloud: 79%
Mid level cloud: 71%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
18:00

S
S

4 / 7 mph 68 / 69°F 60% 1021 mb
Low level cloud: 25%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
51%
0.0 In
Wed 12
Jun
00:00

N
N

1 / 2 mph 45 / 45°F 96% 1002 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 74%
Most Significant Cloud Type: medium
48%
0.3 In
06:00

SE
SE

3 / 6 mph 57 / 57°F 89% 1020 mb
Low level cloud: 8%
Mid level cloud: 14%
High level cloud: 33%
Most Significant Cloud Type: low
16%
0.0 In
12:00

WNW
WNW

7 / 15 mph 61 / 61°F 69% 1004 mb
Low level cloud: 55%
Mid level cloud: 52%
High level cloud: 90%
Most Significant Cloud Type: low
83%
0.1 In
18:00

SE
SE

8 / 14 mph 67 / 67°F 70% 1014 mb
Low level cloud: 14%
Mid level cloud: 9%
High level cloud: 12%
Most Significant Cloud Type: low
18%
0.0 In
Thu 13
Jun
00:00

WNW
WNW

3 / 7 mph 46 / 45°F 99% 1009 mb
Low level cloud: 66%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: low
82%
0.0 In
06:00

ESE
ESE

7 / 13 mph 52 / 49°F 86% 1007 mb
Low level cloud: 90%
Mid level cloud: 83%
High level cloud: 2%
Most Significant Cloud Type: low
100%
0.0 In
12:00

WNW
WNW

6 / 13 mph 59 / 58°F 68% 1010 mb
Low level cloud: 63%
Mid level cloud: 62%
High level cloud: 18%
Most Significant Cloud Type: low
86%
0.0 In
18:00

SSW
SSW

5 / 9 mph 60 / 60°F 69% 1005 mb
Low level cloud: 2%
Mid level cloud: 25%
High level cloud: 15%
Most Significant Cloud Type: medium
30%
0.2 In

Other Locations Near to Drumcask

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