Annual mean 8°C · wettest around May · prevailing wind W
Warmest
28.8 °C
Coldest
-1.9 °C
Wettest
20%
Windiest
6.5 m/s
Prevailing
W
5.2 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 Gillette over the whole year is 8°C. July is the hottest month, with highs of about 28°C; February is the coldest, with lows of about -7°C. Gillette has no sharply defined rainy season: the chance of rain on a given day runs from 8% in December, the driest month, to 21% in May, the wettest. Winds in Gillette are highest in February, averaging 4.9 m/s (18 km/h), and lightest in August, at 3.8 m/s (14 km/h). The prevailing wind is from the W. The clearest skies in Gillette come in July, when the sky is typically 15% covered; April is the cloudiest month, at 44%.
Month by month Gillette 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
-0°C
-5°C
-7°C
11%
39%
4.6 m/s
0
0
3
February
-1°C
-7°C
-8°C
13%
41%
4.9 m/s
0
0
5
March
6°C
-2°C
-1°C
14%
41%
4.6 m/s
2
0
22
April
10°C
1°C
3°C
19%
44%
4.9 m/s
10
0
38
May
16°C
8°C
11°C
21%
41%
4.5 m/s
35
2
65
June
23°C
14°C
20°C
18%
25%
4.1 m/s
73
26
63
July
28°C
18°C
26°C
16%
15%
3.9 m/s
63
63
30
August
27°C
15°C
23°C
14%
16%
3.8 m/s
71
50
41
September
22°C
11°C
18°C
14%
23%
3.9 m/s
64
19
62
October
12°C
4°C
7°C
12%
31%
4.2 m/s
23
0
52
November
7°C
-1°C
0°C
9%
31%
4.6 m/s
3
0
23
December
1°C
-4°C
-6°C
8%
34%
4.9 m/s
0
0
6
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 Gillette weather by season
Year round, Gillette has days of about -1°C at their warmest in February, its coolest month, and 28°C in July, its warmest; the coolest hours of the day run from -7°C to 18°C through the year, and the average temperature over the year is 8°C around the clock. Rain is most likely around May and least likely around December. 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.
Gillette weather in winterDecember to February
High -0°CLow -6°CRain 11%
Winter in Gillette has typical daily highs of about -0°C and lows of about -6°C, with a 11% chance of rain on a given day.
Gillette weather in springMarch to May
High 10°CLow 2°CRain 18%
Spring in Gillette has typical daily highs of about 10°C and lows of about 2°C, with a 18% chance of rain on a given day.
Gillette weather in summerJune to August
High 26°CLow 16°CRain 16%
Summer in Gillette has typical daily highs of about 26°C and lows of about 16°C, with a 16% chance of rain on a given day.
Gillette weather in autumnSeptember to November
High 14°CLow 5°CRain 12%
Autumn in Gillette has typical daily highs of about 14°C and lows of about 5°C, with a 12% chance of rain on a given day.
When is the rainy season in Gillette?
Gillette has no sharply defined rainy season: the chance of rain on a given day runs from 8% in December, the driest month, to 21% in May, the wettest.
What time of year is Gillette windiest?
Winds in Gillette are highest in February, averaging 4.9 m/s (18 km/h), and lightest in August, at 3.8 m/s (14 km/h). The prevailing wind is from the W.
What is the average temperature in Gillette year round?
The average temperature in Gillette over the whole year is 8°C. July is the hottest month, with highs of about 28°C; February is the coldest, with lows of about -7°C.