Annual mean 13°C · wettest around April · prevailing wind SW
Warmest
28.9 °C
Coldest
0.5 °C
Wettest
76%
Windiest
5.5 m/s
Prevailing
SW
4.0 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 Olney over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C. Olney has no sharply defined rainy season: the chance of rain on a given day runs from 67% in October, the driest month, to 72% in April, the wettest. Winds in Olney are highest in March, averaging 3.8 m/s (14 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Olney come in September, when the sky is typically 28% covered; January is the cloudiest month, at 57%.
Month by month Olney 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
2°C
-2°C
-4°C
69%
57%
3.6 m/s
0
0
8
February
5°C
0°C
0°C
69%
48%
3.6 m/s
5
0
22
March
11°C
4°C
6°C
72%
48%
3.8 m/s
12
0
37
April
16°C
9°C
12°C
72%
43%
3.6 m/s
35
4
56
May
22°C
15°C
21°C
71%
42%
3.0 m/s
57
28
48
June
28°C
20°C
28°C
69%
28%
2.4 m/s
40
52
16
July
29°C
21°C
31°C
71%
30%
1.8 m/s
18
55
4
August
28°C
20°C
30°C
68%
31%
1.6 m/s
30
56
8
September
26°C
16°C
26°C
68%
28%
1.8 m/s
49
50
27
October
19°C
10°C
16°C
67%
38%
2.6 m/s
46
15
56
November
11°C
4°C
6°C
71%
39%
3.0 m/s
15
0
41
December
5°C
1°C
1°C
71%
50%
3.3 m/s
2
0
19
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 Olney weather by season
Year round, Olney has days of about 2°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -2°C to 21°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around April 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.
Olney weather in winterDecember to February
High 4°CLow -0°CRain 69%
Winter in Olney has typical daily highs of about 4°C and lows of about -0°C, with a 69% chance of rain on a given day.
Olney weather in springMarch to May
High 17°CLow 9°CRain 71%
Spring in Olney has typical daily highs of about 17°C and lows of about 9°C, with a 71% chance of rain on a given day.
Olney weather in summerJune to August
High 28°CLow 20°CRain 69%
Summer in Olney has typical daily highs of about 28°C and lows of about 20°C, with a 69% chance of rain on a given day.
Olney weather in autumnSeptember to November
High 19°CLow 10°CRain 69%
Autumn in Olney has typical daily highs of about 19°C and lows of about 10°C, with a 69% chance of rain on a given day.
When is the rainy season in Olney?
Olney has no sharply defined rainy season: the chance of rain on a given day runs from 67% in October, the driest month, to 72% in April, the wettest.
What time of year is Olney windiest?
Winds in Olney are highest in March, averaging 3.8 m/s (14 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Olney year round?
The average temperature in Olney over the whole year is 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -2°C.