WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Fenghua 14 Day Long Range Forecast

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

China

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

Over the next 14 days the Fenghua forecast suggests the average daytime maximum temperature will be around 23°C, with a high for the two weeks of 31°C expected on the afternoon of Tuesday 7th. The average minimum temperature will be 14°C, dipping to its lowest on the morning of Thursday 9th at 10°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. The indicators are that Tuesday 30th will have the most precipitation with an accumulation of around 17.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Mon 29
Apr
20:00

NE
NE

3 / 6 mph 65 / 65°F 95% 1010 mb
Low level cloud: 45%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

NE
NE

3 / 5 mph 64 / 64°F 96% 1011 mb
Low level cloud: 85%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 30
Apr
02:00

NNE
NNE

3 / 3 mph 64 / 64°F 94% 1009 mb
Low level cloud: 73%
Mid level cloud: 63%
High level cloud: 32%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ENE
ENE

1 / 2 mph 64 / 64°F 97% 1008 mb
Low level cloud: 96%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
08:00

ENE
ENE

4 / 4 mph 63 / 63°F 98% 1009 mb
Low level cloud: 98%
Mid level cloud: 97%
High level cloud: 26%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
11:00

ENE
ENE

3 / 3 mph 63 / 63°F 97% 1009 mb
Low level cloud: 99%
Mid level cloud: 84%
High level cloud: 44%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NE
NE

5 / 5 mph 63 / 63°F 98% 1008 mb
Low level cloud: 100%
Mid level cloud: 99%
High level cloud: 19%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
17:00

NE
NE

5 / 6 mph 62 / 62°F 98% 1009 mb
Low level cloud: 99%
Mid level cloud: 100%
High level cloud: 81%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

N
N

6 / 7 mph 60 / 60°F 98% 1011 mb
Low level cloud: 99%
Mid level cloud: 90%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
23:00

N
N

5 / 6 mph 58 / 58°F 97% 1013 mb
Low level cloud: 94%
Mid level cloud: 83%
High level cloud: 71%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Wed 01
May
02:00

NNW
NNW

5 / 8 mph 53 / 51°F 96% 1012 mb
Low level cloud: 98%
Mid level cloud: 95%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

N
N

5 / 9 mph 51 / 49°F 96% 1012 mb
Low level cloud: 87%
Mid level cloud: 68%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

N
N

6 / 9 mph 52 / 50°F 95% 1015 mb
Low level cloud: 94%
Mid level cloud: 87%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

N
N

6 / 6 mph 57 / 55°F 87% 1016 mb
Low level cloud: 76%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

NNW
NNW

4 / 5 mph 59 / 58°F 83% 1015 mb
Low level cloud: 68%
Mid level cloud: 57%
High level cloud: 0%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

NNW
NNW

4 / 4 mph 60 / 59°F 82% 1015 mb
Low level cloud: 0%
Mid level cloud: 50%
High level cloud: 1%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

NW
NW

2 / 3 mph 57 / 58°F 86% 1017 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 42%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

WNW
WNW

2 / 3 mph 55 / 56°F 84% 1017 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 96%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 02
May
02:00

NNW
NNW

2 / 4 mph 52 / 53°F 82% 1016 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 74%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

N
N

2 / 4 mph 52 / 53°F 80% 1017 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 32%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

NNE
NNE

2 / 2 mph 61 / 61°F 74% 1018 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 2%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

ENE
ENE

3 / 4 mph 71 / 69°F 67% 1017 mb
Low level cloud: 64%
Mid level cloud: 25%
High level cloud: 19%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ENE
ENE

4 / 4 mph 68 / 66°F 79% 1015 mb
Low level cloud: 73%
Mid level cloud: 22%
High level cloud: 9%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

ENE
ENE

4 / 5 mph 64 / 63°F 90% 1016 mb
Low level cloud: 93%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

ENE
ENE

3 / 4 mph 60 / 60°F 95% 1018 mb
Low level cloud: 95%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SE
SE

2 / 3 mph 59 / 59°F 95% 1018 mb
Low level cloud: 85%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 03
May
02:00

SE
SE

2 / 3 mph 58 / 59°F 96% 1017 mb
Low level cloud: 50%
Mid level cloud: 49%
High level cloud: 1%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

ESE
ESE

2 / 2 mph 57 / 56°F 96% 1017 mb
Low level cloud: 41%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

ESE
ESE

2 / 2 mph 65 / 62°F 90% 1018 mb
Low level cloud: 39%
Mid level cloud: 56%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SSE
SSE

4 / 4 mph 68 / 65°F 81% 1018 mb
Low level cloud: 57%
Mid level cloud: 44%
High level cloud: 5%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

SE
SE

4 / 5 mph 71 / 68°F 74% 1016 mb
Low level cloud: 37%
Mid level cloud: 32%
High level cloud: 4%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

E
E

4 / 4 mph 70 / 68°F 76% 1016 mb
Low level cloud: 49%
Mid level cloud: 46%
High level cloud: 2%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

E
E

3 / 6 mph 59 / 59°F 85% 1017 mb
Low level cloud: 59%
Mid level cloud: 33%
High level cloud: 1%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

SE
SE

3 / 4 mph 58 / 59°F 84% 1017 mb
Low level cloud: 69%
Mid level cloud: 37%
High level cloud: 2%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 04
May
02:00

SSE
SSE

2 / 4 mph 57 / 58°F 84% 1015 mb
Low level cloud: 76%
Mid level cloud: 46%
High level cloud: 4%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

SE
SE

2 / 3 mph 57 / 57°F 84% 1015 mb
Low level cloud: 48%
Mid level cloud: 48%
High level cloud: 40%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SE
SE

3 / 3 mph 68 / 66°F 72% 1015 mb
Low level cloud: 11%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: medium
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
11:00

SE
SE

4 / 5 mph 78 / 78°F 63% 1014 mb
Low level cloud: 10%
Mid level cloud: 26%
High level cloud: 17%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
14:00

ESE
ESE

4 / 5 mph 80 / 79°F 64% 1012 mb
Low level cloud: 20%
Mid level cloud: 21%
High level cloud: 100%
Most Significant Cloud Type: low
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

E
E

3 / 4 mph 69 / 65°F 83% 1012 mb
Low level cloud: 23%
Mid level cloud: 46%
High level cloud: 96%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
20:00

SE
SE

3 / 6 mph 60 / 60°F 84% 1012 mb
Low level cloud: 25%
Mid level cloud: 36%
High level cloud: 89%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
23:00

S
S

4 / 8 mph 58 / 58°F 82% 1013 mb
Low level cloud: 14%
Mid level cloud: 45%
High level cloud: 94%
Most Significant Cloud Type: medium
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 05
May
02:00

S
S

4 / 7 mph 58 / 58°F 80% 1010 mb
Low level cloud: 9%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
05:00

S
S

4 / 9 mph 58 / 58°F 84% 1010 mb
Low level cloud: 9%
Mid level cloud: 48%
High level cloud: 59%
Most Significant Cloud Type: medium
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
08:00

SSE
SSE

4 / 6 mph 60 / 59°F 97% 1010 mb
Low level cloud: 53%
Mid level cloud: 48%
High level cloud: 92%
Most Significant Cloud Type: low
80%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
11:00

SSE
SSE

4 / 5 mph 61 / 61°F 97% 1009 mb
Low level cloud: 79%
Mid level cloud: 43%
High level cloud: 59%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
14:00

S
S

5 / 5 mph 73 / 76°F 88% 1007 mb
Low level cloud: 55%
Mid level cloud: 49%
High level cloud: 34%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
17:00

WSW
WSW

1 / 2 mph 66 / 66°F 98% 1007 mb
Low level cloud: 80%
Mid level cloud: 84%
High level cloud: 98%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
20:00

NNW
NNW

3 / 4 mph 65 / 65°F 99% 1008 mb
Low level cloud: 93%
Mid level cloud: 46%
High level cloud: 80%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
23:00

NW
NW

3 / 4 mph 64 / 64°F 99% 1009 mb
Low level cloud: 91%
Mid level cloud: 59%
High level cloud: 12%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Mon 06
May
02:00

N
N

2 / 5 mph 64 / 64°F 98% 1008 mb
Low level cloud: 97%
Mid level cloud: 72%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
08:00

NW
NW

4 / 8 mph 67 / 67°F 91% 1011 mb
Low level cloud: 74%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
76%
0.0 In
14:00

NW
NW

10 / 20 mph 84 / 85°F 51% 1009 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
20:00

SSE
SSE

4 / 9 mph 71 / 71°F 93% 1009 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: medium
11%
0.0 In
Tue 07
May
02:00

S
S

5 / 10 mph 65 / 65°F 98% 1010 mb
Low level cloud: 40%
Mid level cloud: 0%
High level cloud: 13%
Most Significant Cloud Type: low
100%
0.0 In
08:00

N
N

1 / 3 mph 78 / 83°F 83% 1012 mb
Low level cloud: 49%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
52%
0.0 In
14:00

NNW
NNW

8 / 15 mph 83 / 87°F 63% 1011 mb
Low level cloud: 19%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
35%
0.0 In
20:00

SE
SE

4 / 7 mph 71 / 71°F 94% 1012 mb
Low level cloud: 16%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
17%
0.0 In
Wed 08
May
02:00

NNW
NNW

3 / 5 mph 63 / 63°F 94% 1015 mb
Low level cloud: 28%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
43%
0.0 In
08:00

SSW
SSW

1 / 2 mph 81 / 87°F 80% 1013 mb
Low level cloud: 2%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
14:00

N
N

10 / 18 mph 74 / 77°F 58% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
20:00

NNE
NNE

4 / 7 mph 69 / 69°F 95% 1013 mb
Low level cloud: 53%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
54%
0.0 In
Thu 09
May
02:00

NNW
NNW

0 / 1 mph 59 / 59°F 95% 1017 mb
Low level cloud: 16%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
15%
0.0 In
08:00

SSE
SSE

3 / 6 mph 69 / 69°F 90% 1014 mb
Low level cloud: 47%
Mid level cloud: 46%
High level cloud: 65%
Most Significant Cloud Type: low
71%
0.0 In
14:00

SE
SE

6 / 11 mph 81 / 83°F 56% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
0.0 In
20:00

SE
SE

4 / 7 mph 67 / 67°F 90% 1013 mb
Low level cloud: 49%
Mid level cloud: 57%
High level cloud: 0%
Most Significant Cloud Type: low
68%
0.0 In
Fri 10
May
02:00

S
S

5 / 9 mph 59 / 59°F 94% 1013 mb
Low level cloud: 2%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
0.0 In
08:00

ESE
ESE

2 / 4 mph 68 / 68°F 88% 1015 mb
Low level cloud: 67%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
82%
0.0 In
14:00

SE
SE

6 / 11 mph 84 / 89°F 63% 1011 mb
Low level cloud: 1%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
0.0 In
20:00

E
E

3 / 6 mph 67 / 67°F 88% 1015 mb
Low level cloud: 67%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
74%
0.0 In
Sat 11
May
02:00

S
S

4 / 8 mph 64 / 64°F 92% 1011 mb
Low level cloud: 3%
Mid level cloud: 43%
High level cloud: 44%
Most Significant Cloud Type: medium
54%
0.0 In
08:00

SSE
SSE

4 / 8 mph 73 / 77°F 77% 1013 mb
Low level cloud: 31%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
47%
0.0 In
14:00

SSE
SSE

2 / 3 mph 76 / 81°F 95% 1011 mb
Low level cloud: 70%
Mid level cloud: 52%
High level cloud: 19%
Most Significant Cloud Type: low
90%
0.2 In
20:00

SSE
SSE

5 / 10 mph 66 / 66°F 95% 1011 mb
Low level cloud: 57%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
67%
0.0 In
Sun 12
May
02:00

NNW
NNW

2 / 4 mph 68 / 67°F 99% 1010 mb
Low level cloud: 96%
Mid level cloud: 60%
High level cloud: 48%
Most Significant Cloud Type: low
100%
0.0 In
08:00

SSE
SSE

3 / 6 mph 72 / 76°F 92% 1010 mb
Low level cloud: 84%
Mid level cloud: 77%
High level cloud: 37%
Most Significant Cloud Type: low
100%
0.0 In
14:00

NNW
NNW

5 / 9 mph 70 / 70°F 97% 1011 mb
Low level cloud: 97%
Mid level cloud: 80%
High level cloud: 16%
Most Significant Cloud Type: low
100%
0.1 In
20:00

N
N

7 / 14 mph 67 / 67°F 98% 1008 mb
Low level cloud: 99%
Mid level cloud: 84%
High level cloud: 89%
Most Significant Cloud Type: low
100%
0.2 In
Mon 13
May
02:00

NW
NW

2 / 4 mph 63 / 63°F 95% 1012 mb
Low level cloud: 25%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
30%
0.1 In
08:00

N
N

4 / 8 mph 66 / 65°F 97% 1012 mb
Low level cloud: 96%
Mid level cloud: 46%
High level cloud: 4%
Most Significant Cloud Type: low
100%
0.5 In
14:00

ENE
ENE

5 / 9 mph 86 / 90°F 53% 1012 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
20:00

SE
SE

2 / 4 mph 70 / 70°F 92% 1013 mb
Low level cloud: 6%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.0 In
Tue 14
May
02:00

S
S

4 / 8 mph 63 / 63°F 93% 1013 mb
Low level cloud: 4%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
0.0 In
08:00

SSE
SSE

2 / 4 mph 79 / 83°F 75% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
14:00

SSE
SSE

6 / 12 mph 90 / 99°F 60% 1010 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 7%
Most Significant Cloud Type: medium
14%
0.0 In
20:00

SSE
SSE

6 / 12 mph 66 / 65°F 89% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In

Other Locations Near to Fenghua

Cities and Towns: Ningbo, China

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