Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.6 °C
Coldest
2.0 °C
Wettest
51%
Windiest
5.2 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 Herrin 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 -1°C. Herrin has no sharply defined rainy season: the chance of rain on a given day runs from 52% in November, the driest month, to 59% in April, the wettest. Winds in Herrin are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Herrin come in June, when the sky is typically 30% covered; January is the cloudiest month, at 56%.
Month by month Herrin 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
3°C
-1°C
-2°C
53%
56%
3.2 m/s
1
0
12
February
7°C
1°C
2°C
53%
49%
3.5 m/s
7
0
29
March
12°C
6°C
7°C
56%
48%
3.7 m/s
16
0
47
April
17°C
10°C
14°C
59%
43%
3.5 m/s
43
5
62
May
23°C
16°C
22°C
58%
44%
2.8 m/s
61
31
48
June
28°C
21°C
29°C
59%
30%
2.4 m/s
35
56
12
July
30°C
22°C
32°C
58%
33%
2.0 m/s
13
48
3
August
28°C
20°C
31°C
56%
35%
1.8 m/s
27
55
7
September
27°C
16°C
27°C
54%
31%
1.8 m/s
47
52
25
October
20°C
11°C
17°C
55%
36%
2.5 m/s
52
18
59
November
12°C
4°C
8°C
52%
39%
2.7 m/s
18
1
48
December
7°C
2°C
2°C
54%
48%
3.0 m/s
4
0
25
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 Herrin weather by season
Year round, Herrin has days of about 3°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from -1°C to 22°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around April and least likely around November. 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.
Herrin weather in winterDecember to February
High 5°CLow 1°CRain 53%
Winter in Herrin has typical daily highs of about 5°C and lows of about 1°C, with a 53% chance of rain on a given day.
Herrin weather in springMarch to May
High 17°CLow 10°CRain 58%
Spring in Herrin has typical daily highs of about 17°C and lows of about 10°C, with a 58% chance of rain on a given day.
Herrin weather in summerJune to August
High 29°CLow 21°CRain 57%
Summer in Herrin has typical daily highs of about 29°C and lows of about 21°C, with a 57% chance of rain on a given day.
Herrin weather in autumnSeptember to November
High 19°CLow 11°CRain 54%
Autumn in Herrin has typical daily highs of about 19°C and lows of about 11°C, with a 54% chance of rain on a given day.
When is the rainy season in Herrin?
Herrin has no sharply defined rainy season: the chance of rain on a given day runs from 52% in November, the driest month, to 59% in April, the wettest.
What time of year is Herrin windiest?
Winds in Herrin are highest in March, averaging 3.7 m/s (13 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Herrin year round?
The average temperature in Herrin 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 -1°C.