Climate and monthly weather forecastSaybrook, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Saybrook, Illinois, is another subzero cold winter month, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 19.6°F (-6.9°C). In Saybrook, January is the coldest month, with temperatures averaging a high of 31.5°F (-0.3°C) and a low of 19.6°F (-6.9°C). Weather in January »Weather in February
The last month of the winter, February, is a cold month in Saybrook, Illinois, with an average temperature ranging between min 22.6°F (-5.2°C) and max 35.8°F (2.1°C). As Saybrook transitions from January to February, the average high-temperatures adjust to a wintry 35.8°F (2.1°C), nearly the same as the previous 31.5°F (-0.3°C). Weather in February »Weather in March
March, the first month of the spring in Saybrook, is a frosty month, with an average temperature ranging between max 48.4°F (9.1°C) and min 34.2°F (1.2°C). As March arrives, Saybrook's weather shows an increase in high-temperatures, moving from February's wintry 35.8°F (2.1°C) to a chilly 48.4°F (9.1°C). Weather in March »Weather in April
April in Saybrook, Illinois, is a refreshing spring month, with an average temperature ranging between max 60.8°F (16°C) and min 44.2°F (6.8°C). The shift from March to April is marked by an increase in the average high-temperature, moving from a chilly 48.4°F (9.1°C) to a comfortable 60.8°F (16°C). Weather in April »Weather in May
May, the last month of the spring in Saybrook, is an agreeable month, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 55.4°F (13°C). Saybrook's transition into May is marked by a rise in the average high-temperature, advancing from a comfortable 60.8°F (16°C) in April to a pleasant 71.6°F (22°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Saybrook, Illinois, with temperature in the range of an average low of 62.8°F (17.1°C) and an average high of 79.5°F (26.4°C). Saybrook observes a slight ascent in average high-temperatures during June, adjusting from a pleasant 71.6°F (22°C) in May to a warm 79.5°F (26.4°C). Weather in June »Weather in July
July, like June, in Saybrook, Illinois, is another warm summer month, with an average temperature ranging between min 64.6°F (18.1°C) and max 80.8°F (27.1°C). In Saybrook, temperatures reach their average annual highs in July, measuring 80.8°F (27.1°C) and a minimum average of 64.6°F (18.1°C). In July, the average heat index is calculated to be a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Saybrook, Illinois, with an average temperature fluctuating between 62.8°F (17.1°C) and 79.7°F (26.5°C). Saybrook signifies an average high-temperature of a still moderately hot 79.7°F (26.5°C) in August, closely mirroring the 80.8°F (27.1°C) of July. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Saybrook, Illinois, with an average temperature varying between 75.7°F (24.3°C) and 57.4°F (14.1°C). The advent of September reveals an average high-temperature of a still warm 75.7°F (24.3°C), showing minimal difference from the prior month. Weather in September »Weather in October
October, like September, in Saybrook, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 46.9°F (8.3°C) and 62.4°F (16.9°C). A shift in Saybrook's weather is observed as September turns into October, with the average high temperature reducing from a warm 75.7°F (24.3°C) to a refreshing 62.4°F (16.9°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Saybrook, Illinois, with an average temperature ranging between min 35.1°F (1.7°C) and max 47.8°F (8.8°C). The average high-temperature exhibits a considerable decrease in November, dropping from an enjoyable 62.4°F (16.9°C) in October to a frosty 47.8°F (8.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Saybrook, Illinois, with an average temperature fluctuating between 36.5°F (2.5°C) and 27°F (-2.8°C). The shift from November to December corresponds with a decrease in the average high-temperature, down to a wintry 36.5°F (2.5°C) from a chilly 47.8°F (8.8°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
In Saybrook, January records the average lowest temperatures, peaking at 31.5°F (-0.3°C) and reaching a low of 19.6°F (-6.9°C).
In Saybrook, during the entire year, the rain falls for 126.2 days and collects up to 14.96" (380mm) of precipitation.
January through April, October through December are months with snowfall in Saybrook, Illinois.
January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 1.38" (35mm) of snow.
In Saybrook, during the entire year, snow falls for 29.4 days and aggregates up to 4.69" (119mm) of snow.
With an average of 3.8h of sunshine, January has the least sunshine of the year.
The months with the least rainfall in Saybrook, Illinois, are February and December Rain falls for 5.1 days and accumulates 0.75" (19mm) of rain.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Saybrook, 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.
The month with the most rainfall in Saybrook, Illinois, is May, when the rain falls for 14.9 days and typically aggregates up to 1.93" (49mm) of precipitation.
In Saybrook, snow does not fall in May through September.
June has the longest days of the year in Saybrook, Illinois, with an average of 15h and 0min of daylight.
With an average of 9.8h of sunshine, June has the most sunshine of the year in Saybrook, Illinois.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July, recognised by an average high temperature of 80.8°F (27.1°C) and a low of 64.6°F (18.1°C), is Saybrook's warmest month.
July is the most humid month, with an average relative humidity of 85%.
With an average relative humidity of 71%, October is the least humid month in Saybrook, Illinois.
December has the shortest days of the year, with an average of 9h and 18min of daylight.
The month with the lowest UV index in Saybrook, Illinois, is December, with an average maximum UV index of 1.
Average temperature
Saybrook, IL
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.5°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 (19.6°F).
Average pressure
Saybrook, IL
- Average pressure in January:
30.14"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:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Saybrook, IL
- Average wind speed in January:
11mph - Average wind speed in February:
10.8mph - Average wind speed in March:
10.5mph - Average wind speed in April:
10.8mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Saybrook, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Saybrook, IL
- Average rainfall in January:
0.87" - Average rainfall in February:
0.75" - Average rainfall in March:
1.18" - Average rainfall in April:
1.57" - Average rainfall in May:
1.93" - Average rainfall in June:
1.69"
- Average rainfall in July:
1.73" - Average rainfall in August:
1.38" - Average rainfall in September:
0.94" - Average rainfall in October:
1.22" - Average rainfall in November:
0.94" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is May (1.93").
The driest months (with the least rainfall) are February and December (0.75").
Average rainfall days
Saybrook, IL
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
5.1 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
10.3 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (4.8 days).
Average snowfall
Saybrook, IL
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Saybrook, IL
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
7.7 days - Average snowfall days in March:
3.4 days - Average snowfall days in April:
0.8 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:
0.2 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
6.5 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Saybrook, IL
- Average daylight in January:
9h and 42min - 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:
15h and 0min
- Average daylight in July:
14h and 42min - 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:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 42min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
9h and 36min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 12min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Saybrook, IL
- Average sunshine days in January:
18.3 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
16.8 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
10.3 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
17 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.3 days).
Average UV index
Saybrook, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Saybrook, IL
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility
Saybrook, 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).
