Climate and monthly weather forecastGalva, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Galva, Illinois, is a freezing cold winter month, with temperature in the range of an average high of 28.8°F (-1.8°C) and an average low of 16.7°F (-8.5°C). January is the month when Galva experiences its coldest temperatures, averaging a high of 28.8°F (-1.8°C) and a low of 16.7°F (-8.5°C). Weather in January »Weather in February
The last month of the winter, February, is a wintry month in Galva, Illinois, with an average temperature ranging between max 33.3°F (0.7°C) and min 20.5°F (-6.4°C). Galva indicates an average high-temperature of a cold 33.3°F (0.7°C) in February, showing minor variation from January's 28.8°F (-1.8°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Galva, Illinois, with an average temperature varying between 47.1°F (8.4°C) and 32.4°F (0.2°C). March comes with an increase, with the average high-temperature moving from a cold 33.3°F (0.7°C) in February to a frosty 47.1°F (8.4°C). Weather in March »Weather in April
April in Galva, Illinois, is a mild spring month, with an average temperature ranging between min 42.4°F (5.8°C) and max 59.2°F (15.1°C). Galva, Illinois, in April experiences an increase in the average high-temperature, moving from March's chilly 47.1°F (8.4°C) to a moderate 59.2°F (15.1°C). Weather in April »Weather in May
May, the last month of the spring in Galva, is an agreeable month, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 53.6°F (12°C). In Galva, the onset of May comes with an increased average high-temperature, moving from April's mild 59.2°F (15.1°C) to an agreeable 70.7°F (21.5°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Galva, Illinois, with an average temperature varying between 62.1°F (16.7°C) and 78.6°F (25.9°C). June marks a minor ascent in the average high-temperature, adjusting from May's agreeable 70.7°F (21.5°C) to a moderately hot 78.6°F (25.9°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Galva, Illinois, with an average temperature varying between 64.6°F (18.1°C) and 81°F (27.2°C). The month of July sees the highest average temperatures, reaching 81°F (27.2°C) at the peak and 64.6°F (18.1°C) at the low. Throughout July, the heat index is appraised at a tropical 87.8°F (31°C). Weather in July »Weather in August
August, the last month of the summer in Galva, is another warm month, with an average temperature ranging between max 80.1°F (26.7°C) and min 62.6°F (17°C). The arrival of August brings an average high-temperature of a still warm 80.1°F (26.7°C), nearly identical to July's 81°F (27.2°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Galva, Illinois, with an average temperature varying between 56.3°F (13.5°C) and 74.8°F (23.8°C). Transitioning into September, Galva records an average high-temperature of a still warm 74.8°F (23.8°C), almost identical to August's 80.1°F (26.7°C). Weather in September »Weather in October
October, like September, in Galva, Illinois, is another enjoyable autumn month, with an average temperature varying between 61.3°F (16.3°C) and 45.5°F (7.5°C). A subtle decrease in the average high-temperature marks October, falling from September's moderately hot 74.8°F (23.8°C) to a refreshing 61.3°F (16.3°C). Weather in October »Weather in November
November, the last month of the autumn in Galva, is also a frosty month, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 33.4°F (0.8°C). November's arrival corresponds with a decrease in average high-temperatures, from October's enjoyable 61.3°F (16.3°C) to a frosty 47.1°F (8.4°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Galva, Illinois, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 34.7°F (1.5°C). The transition into December indicates a reduction in the average high-temperature, down to an icy 34.7°F (1.5°C) from November's chilly 47.1°F (8.4°C). Weather in December »Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Galva's coldest weather arrives in January, when temperatures average a high of 28.8°F (-1.8°C) and a low of 16.7°F (-8.5°C).
January and December are months with the least rain when the rain falls for 6.1 days and typically aggregates up to 1.42" (36mm) of rain.
In Galva, during the entire year, the rain falls for 147.2 days and collects up to 29.17" (741mm) of precipitation.
Months with snowfall are January through April, October through December.
January is the month with the most snowfall. Snow falls for 11.4 days and accumulates 3.66" (93mm) of snow.
Throughout the year, there are 37 snowfall days, and 12.91" (328mm) of snow is accumulated.
With an average of 3.9h of sunshine, January has the least sunshine of the year in Galva.
With an average maximum UV index of 1, January is the month with the lowest UV index in Galva.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
May is the month with the most rainfall in Galva, Illinois. Rain falls for 18.3 days and accumulates 4.45" (113mm) of precipitation.
May through September are months without snowfall.
The month with the longest days is June, with an average of 15h and 6min of daylight.
The months with the most sunshine are June and July, with an average of 10h of sunshine.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
July, with average temperatures reaching a high of 81°F (27.2°C) and a low of 64.6°F (18.1°C), is the warmest month.
With an average relative humidity of 84%, July is the most humid month.
The least humid month is October, with an average relative humidity of 72%.
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Galva, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure
Galva, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Galva, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9.1mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Galva, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Galva, IL
- Average rainfall in January:
1.42" - Average rainfall in February:
1.57" - Average rainfall in March:
2.05" - Average rainfall in April:
3.5" - Average rainfall in May:
4.45" - Average rainfall in June:
3.31"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.01" - Average rainfall in September:
2.05" - Average rainfall in October:
2.72" - Average rainfall in November:
1.81" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days
Galva, IL
- Average rainfall days in January:
6.1 days - Average rainfall days in February:
5.6 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
12.3 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall
Galva, IL
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Galva, IL
- Average snowfall days in January:
11.4 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
1.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
3 days - Average snowfall days in December:
7.3 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Galva, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 6min - Average sunshine in March:
6h and 36min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 48min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Galva, IL
- Average sunshine days in January:
15.2 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
18 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index
Galva, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Galva, IL
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
Galva, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
