Annual mean 18°C · wettest around May · prevailing wind S
Warmest
33.8 °C
Coldest
9.3 °C
Wettest
83%
Windiest
5.7 m/s
Prevailing
S
4.5 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 Denison over the whole year is 18°C. July is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 3°C. Denison has no sharply defined rainy season: the chance of rain on a given day runs from 68% in September, the driest month, to 74% in May, the wettest. Winds in Denison are highest in March, averaging 4.1 m/s (15 km/h), and lightest in September, at 2.5 m/s (9 km/h). The prevailing wind is from the S. The clearest skies in Denison come in July, when the sky is typically 20% covered; February is the cloudiest month, at 42%.
Month by month Denison 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
10°C
3°C
5°C
71%
36%
3.5 m/s
9
0
41
February
13°C
5°C
8°C
72%
42%
3.8 m/s
23
1
49
March
18°C
10°C
14°C
72%
37%
4.1 m/s
43
3
68
April
21°C
13°C
18°C
73%
42%
4.0 m/s
63
11
63
May
26°C
18°C
25°C
74%
40%
3.5 m/s
56
46
31
June
31°C
23°C
32°C
73%
27%
3.2 m/s
14
51
4
July
33°C
25°C
35°C
68%
20%
3.0 m/s
2
32
0
August
33°C
24°C
34°C
72%
21%
2.7 m/s
6
35
1
September
30°C
20°C
30°C
68%
26%
2.5 m/s
26
52
10
October
24°C
14°C
22°C
71%
29%
3.1 m/s
54
38
40
November
17°C
9°C
14°C
70%
33%
3.2 m/s
45
4
68
December
13°C
6°C
9°C
72%
39%
3.3 m/s
20
0
54
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 Denison weather by season
Year round, Denison has days of about 10°C at their warmest in January, its coolest month, and 33°C in July, its warmest; the coolest hours of the day run from 3°C to 25°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around May and least likely around September. 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.
Denison weather in winterDecember to February
High 12°CLow 4°CRain 72%
Winter in Denison has typical daily highs of about 12°C and lows of about 4°C, with a 72% chance of rain on a given day.
Denison weather in springMarch to May
High 22°CLow 14°CRain 73%
Spring in Denison has typical daily highs of about 22°C and lows of about 14°C, with a 73% chance of rain on a given day.
Denison weather in summerJune to August
High 32°CLow 24°CRain 71%
Summer in Denison has typical daily highs of about 32°C and lows of about 24°C, with a 71% chance of rain on a given day.
Denison weather in autumnSeptember to November
High 24°CLow 14°CRain 70%
Autumn in Denison has typical daily highs of about 24°C and lows of about 14°C, with a 70% chance of rain on a given day.
When is the rainy season in Denison?
Denison has no sharply defined rainy season: the chance of rain on a given day runs from 68% in September, the driest month, to 74% in May, the wettest.
What time of year is Denison windiest?
Winds in Denison are highest in March, averaging 4.1 m/s (15 km/h), and lightest in September, at 2.5 m/s (9 km/h). The prevailing wind is from the S.
What is the average temperature in Denison year round?
The average temperature in Denison over the whole year is 18°C. July is the hottest month, with highs of about 33°C; January is the coldest, with lows of about 3°C.