Annual mean 22°C · wettest around July · prevailing wind NE
Warmest
31.0 °C
Coldest
14.0 °C
Wettest
31%
Windiest
5.1 m/s
Prevailing
NE
4.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 Jefferson over the whole year is 22°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 10°C. Jefferson has no sharply defined rainy season: the chance of rain on a given day runs from 20% in October, the driest month, to 31% in July, the wettest. Winds in Jefferson are highest in February, averaging 4.2 m/s (15 km/h), and lightest in July, at 2.7 m/s (10 km/h). The prevailing wind is from the NE. The clearest skies in Jefferson come in September, when the sky is typically 29% covered; February is the cloudiest month, at 52%.
Month by month Jefferson 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
14°C
10°C
11°C
27%
47%
4.1 m/s
33
3
60
February
18°C
14°C
16°C
26%
52%
4.2 m/s
54
11
62
March
21°C
16°C
19°C
25%
46%
4.2 m/s
67
19
61
April
24°C
19°C
22°C
25%
41%
4.1 m/s
74
34
48
May
28°C
23°C
28°C
27%
37%
3.5 m/s
36
64
12
June
30°C
26°C
33°C
29%
34%
3.2 m/s
7
43
1
July
30°C
27°C
34°C
31%
30%
2.7 m/s
5
26
1
August
31°C
27°C
34°C
29%
30%
2.8 m/s
4
28
0
September
30°C
25°C
32°C
23%
29%
3.0 m/s
13
48
5
October
26°C
21°C
26°C
20%
30%
3.5 m/s
47
57
26
November
20°C
15°C
19°C
22%
38%
3.7 m/s
60
19
63
December
17°C
13°C
14°C
28%
50%
3.8 m/s
44
9
62
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 Jefferson weather by season
Year round, Jefferson has days of about 14°C at their warmest in January, its coolest month, and 31°C in August, its warmest; the coolest hours of the day run from 10°C to 27°C through the year, and the average temperature over the year is 22°C around the clock. Rain is most likely around July and least likely around October. 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.
Jefferson weather in winterDecember to February
High 16°CLow 12°CRain 27%
Winter in Jefferson has typical daily highs of about 16°C and lows of about 12°C, with a 27% chance of rain on a given day.
Jefferson weather in springMarch to May
High 24°CLow 19°CRain 26%
Spring in Jefferson has typical daily highs of about 24°C and lows of about 19°C, with a 26% chance of rain on a given day.
Jefferson weather in summerJune to August
High 31°CLow 27°CRain 30%
Summer in Jefferson has typical daily highs of about 31°C and lows of about 27°C, with a 30% chance of rain on a given day.
Jefferson weather in autumnSeptember to November
High 25°CLow 20°CRain 22%
Autumn in Jefferson has typical daily highs of about 25°C and lows of about 20°C, with a 22% chance of rain on a given day.
When is the rainy season in Jefferson?
Jefferson has no sharply defined rainy season: the chance of rain on a given day runs from 20% in October, the driest month, to 31% in July, the wettest.
What time of year is Jefferson windiest?
Winds in Jefferson are highest in February, averaging 4.2 m/s (15 km/h), and lightest in July, at 2.7 m/s (10 km/h). The prevailing wind is from the NE.
What is the average temperature in Jefferson year round?
The average temperature in Jefferson over the whole year is 22°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 10°C.