Annual mean 14°C · wettest around December · prevailing wind W
Warmest
30.4 °C
Coldest
4.3 °C
Wettest
68%
Windiest
4.2 m/s
Prevailing
W
3.3 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Greenbelt over the whole year is 14°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 0°C. Greenbelt has no sharply defined rainy season: the chance of rain on a given day runs from 48% in June, the driest month, to 58% in December, the wettest. Winds in Greenbelt are highest in March, averaging 3.0 m/s (11 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Greenbelt come in November, when the sky is typically 31% covered; May is the cloudiest month, at 46%.
Month by month Greenbelt climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
5°C
0°C
-0°C
50%
42%
2.6 m/s
3
0
14
February
7°C
2°C
2°C
57%
39%
2.5 m/s
5
0
26
March
11°C
5°C
6°C
55%
38%
3.0 m/s
14
0
44
April
17°C
10°C
13°C
52%
39%
2.8 m/s
38
6
64
May
21°C
15°C
20°C
54%
46%
2.2 m/s
61
21
61
June
27°C
20°C
27°C
48%
34%
2.2 m/s
52
52
25
July
30°C
23°C
32°C
52%
32%
1.9 m/s
17
57
4
August
28°C
21°C
29°C
57%
35%
1.8 m/s
34
61
10
September
25°C
18°C
25°C
53%
38%
1.9 m/s
64
42
37
October
19°C
12°C
17°C
48%
37%
1.9 m/s
57
13
69
November
12°C
6°C
8°C
54%
31%
2.2 m/s
18
1
52
December
7°C
2°C
3°C
58%
42%
2.2 m/s
2
0
26
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Greenbelt weather by season
Year round, Greenbelt has days of about 5°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from 0°C to 23°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around December and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Greenbelt weather in winterDecember to February
High 6°CLow 2°CRain 55%
Winter in Greenbelt has typical daily highs of about 6°C and lows of about 2°C, with a 55% chance of rain on a given day.
Greenbelt weather in springMarch to May
High 16°CLow 10°CRain 54%
Spring in Greenbelt has typical daily highs of about 16°C and lows of about 10°C, with a 54% chance of rain on a given day.
Greenbelt weather in summerJune to August
High 28°CLow 21°CRain 52%
Summer in Greenbelt has typical daily highs of about 28°C and lows of about 21°C, with a 52% chance of rain on a given day.
Greenbelt weather in autumnSeptember to November
High 19°CLow 12°CRain 52%
Autumn in Greenbelt has typical daily highs of about 19°C and lows of about 12°C, with a 52% chance of rain on a given day.
When is the rainy season in Greenbelt?
Greenbelt has no sharply defined rainy season: the chance of rain on a given day runs from 48% in June, the driest month, to 58% in December, the wettest.
What time of year is Greenbelt windiest?
Winds in Greenbelt are highest in March, averaging 3.0 m/s (11 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the W.
What is the average temperature in Greenbelt year round?
The average temperature in Greenbelt over the whole year is 14°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 0°C.