Climate and monthly weather forecastGlasgow, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Glasgow, Illinois, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 33.8°F (1°C). January, with average temperatures reaching a high of 33.8°F (1°C) and a low of 21.6°F (-5.8°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Glasgow, is another cold month, with an average temperature varying between 38.8°F (3.8°C) and 25.2°F (-3.8°C). With the onset of February, a modest change to a still wintry 38.8°F (3.8°C) from January's 33.8°F (1°C) is noted in high-temperature. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Glasgow, Illinois, with an average temperature fluctuating between 51.8°F (11°C) and 36.1°F (2.3°C). As March begins, there is an increase in the average high-temperature, moving from an icy 38.8°F (3.8°C) in February to a fresh 51.8°F (11°C). Weather in March »Weather in April
April in Glasgow, Illinois, is a comfortable spring month, with an average temperature varying between 46°F (7.8°C) and 63.5°F (17.5°C). The onset of April marks an increase in the average high-temperature, moving from a cool 51.8°F (11°C) in March to an enjoyable 63.5°F (17.5°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Glasgow, Illinois, with an average temperature ranging between min 55.9°F (13.3°C) and max 73°F (22.8°C). The arrival of May brings an increase in high-temperatures, moving from a refreshing 63.5°F (17.5°C) in April to an agreeable 73°F (22.8°C). Weather in May »Weather in June
June, the first month of the summer in Glasgow, is a warm month, with an average temperature varying between 64.4°F (18°C) and 81.9°F (27.7°C). As June sets, the average high-temperature shows a slight increase, moving up from an agreeable 73°F (22.8°C) in May to a warm 81.9°F (27.7°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Glasgow, Illinois, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 66.7°F (19.3°C). July, characterized by an average high temperature of 84°F (28.9°C) and a low temperature of 66.7°F (19.3°C), is generally the warmest month. The heat index value during July is computed to be a fiery hot 95°F (35°C). Weather in July »Weather in August
August, the last month of the summer in Glasgow, is another warm month, with an average temperature fluctuating between 64.9°F (18.3°C) and 83.5°F (28.6°C). Entering August, Glasgow's average high-temperature reads a still warm 83.5°F (28.6°C), indicating a close resemblance to the previous month's climate. Weather in August »Weather in September
September, the first month of the autumn in Glasgow, is still a warm month, with an average temperature ranging between max 78.1°F (25.6°C) and min 58.8°F (14.9°C). With the onset of September, the average high-temperature subtly recedes from August's warm 83.5°F (28.6°C) to a still moderately hot 78.1°F (25.6°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Glasgow, Illinois, with temperature in the range of an average high of 64.2°F (17.9°C) and an average low of 47.3°F (8.5°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 78.1°F (25.6°C) in September to a comfortable 64.2°F (17.9°C). Weather in October »Weather in November
November, the last month of the autumn in Glasgow, is also a fresh month, with temperature in the range of an average low of 36.3°F (2.4°C) and an average high of 51.1°F (10.6°C). The arrival of November corresponds with a temperature reduction, down from October's enjoyable 64.2°F (17.9°C) to a fresh 51.1°F (10.6°C). Weather in November »Weather in December
December, the first month of the winter in Glasgow, is also an icy month, with temperature in the range of an average low of 27.9°F (-2.3°C) and an average high of 39.2°F (4°C). Glasgow's progression into December involves a drop in the average high-temperature, receding from a cool 51.1°F (10.6°C) in November to a wintry 39.2°F (4°C). Weather in December »Updated: Feb 12, 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
The coldest time of the year is January, with temperatures averaging a high of 33.8°F (1°C) and a low of 21.6°F (-5.8°C).
The months with the least rainfall are January, February and December Rain falls for 7.5 days and accumulates 1.73" (44mm) of rain.
In Glasgow, Illinois, during the entire year, the rain falls for 155.4 days and collects up to 31.69" (805mm) of precipitation.
January through April, October through December are months with snowfall in Glasgow.
January is the month with the most snowfall in Glasgow. Snow falls for 9.8 days and accumulates 3.46" (88mm) of snow.
Throughout the year, there are 30.2 snowfall days, and 10.75" (273mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 4.3h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Glasgow, Illinois, 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. Rain falls for 18.8 days and accumulates 4.02" (102mm) of precipitation.
In Glasgow, snow does not fall in May through September.
With an average of 14h and 54min of daylight, June has the longest days of the year in Glasgow, Illinois.
June has the most sunshine of the year, with an average of 10.3h of sunshine.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Glasgow, Illinois.
Glasgow's July weather, with an average high temperature of 84°F (28.9°C) and an average low temperature of 66.7°F (19.3°C), tends to be the warmest of the year.
With an average relative humidity of 82%, July is the most humid month in Glasgow, Illinois.
October is the least humid month in Glasgow, with an average relative humidity of 71%.
The month with the shortest days in Glasgow, Illinois, is December, with an average of 9h and 24min of daylight.
Average temperature
Glasgow, IL
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.8°F).
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Glasgow, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Glasgow, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.7mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8mph - Average wind speed in June:
7mph
- Average wind speed in July:
6mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.4mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity
Glasgow, IL
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Glasgow, IL
- Average rainfall in January:
1.73" - Average rainfall in February:
1.73" - Average rainfall in March:
2.44" - Average rainfall in April:
3.54" - Average rainfall in May:
4.02" - Average rainfall in June:
3.9"
The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January, February and December (1.73").
Average rainfall days
Glasgow, IL
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
7.2 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
15.9 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
17 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
14.9 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
12.1 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (7.2 days).
Average snowfall
Glasgow, IL
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Glasgow, IL
- Average snowfall days in January:
9.8 days - Average snowfall days in February:
7.9 days - Average snowfall days in March:
3.5 days - Average snowfall days in April:
0.7 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:
0.1 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
5.9 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Glasgow, IL
- Average daylight in January:
9h and 48min - 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 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Glasgow, IL
- Average sunshine days in January:
15.5 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
8.6 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
17.2 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (8.6 days).
Average UV index
Glasgow, IL
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Glasgow, IL
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility
Glasgow, IL
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
