Climate and monthly weather forecastLewiston, MN
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Lewiston, Minnesota, with an average temperature varying between 7.5°F (-13.6°C) and 20.7°F (-6.3°C). Lewiston's January weather, with an average high temperature of 20.7°F (-6.3°C) and an average low temperature of 7.5°F (-13.6°C), tends to be the coldest of the year. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Lewiston, Minnesota, with temperature in the range of an average high of 24.4°F (-4.2°C) and an average low of 11.3°F (-11.5°C). Lewiston notes an average high-temperature of a still freezing cold 24.4°F (-4.2°C) in February, displaying minor variation from January. Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Lewiston, Minnesota, with an average temperature varying between 25.2°F (-3.8°C) and 39.2°F (4°C). The start of March brings a distinct shift in the average high-temperature, escalating from February's subzero cold 24.4°F (-4.2°C) to an icy 39.2°F (4°C). Weather in March »Weather in April
April is a cool spring month in Lewiston, Minnesota, with an average temperature fluctuating between 36.5°F (2.5°C) and 52.5°F (11.4°C). Lewiston sees an increase in the average high-temperature with the arrival of April, moving from March's wintry 39.2°F (4°C) to a fresh 52.5°F (11.4°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Lewiston, Minnesota, with an average temperature fluctuating between 48°F (8.9°C) and 64.8°F (18.2°C). Lewiston sees a rise in temperature during May, with average high-temperatures transitioning from a fresh 52.5°F (11.4°C) in April to a comfortable 64.8°F (18.2°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Lewiston, Minnesota, with an average temperature ranging between min 57.6°F (14.2°C) and max 74.1°F (23.4°C). An increase in the average high-temperature marks June, moving from May's enjoyable 64.8°F (18.2°C) to a warm 74.1°F (23.4°C). Weather in June »Weather in July
July, like June, in Lewiston, Minnesota, is a moderately hot summer month, with an average temperature fluctuating between 78.3°F (25.7°C) and 61.3°F (16.3°C). In Lewiston, July is the month with the highest recorded average temperatures, measuring a high of 78.3°F (25.7°C) and a low of 61.3°F (16.3°C). Weather in July »Weather in August
August, the last month of the summer in Lewiston, is also a moderately hot month, with an average temperature varying between 76.6°F (24.8°C) and 58.6°F (14.8°C). A minimal variation is noted in Lewiston's average high-temperature at the onset of August, reaching a still moderately hot 76.6°F (24.8°C) from July's 78.3°F (25.7°C). Weather in August »Weather in September
September, the first month of the autumn in Lewiston, is still a pleasant month, with an average temperature fluctuating between 51.8°F (11°C) and 70.5°F (21.4°C). September indicates a minor shift in the average high-temperature, from August's warm 76.6°F (24.8°C) to an agreeable 70.5°F (21.4°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Lewiston, Minnesota, with an average temperature varying between 55.4°F (13°C) and 40.1°F (4.5°C). The beginning of October marks a clear shift in the average high-temperature, receding from September's pleasant 70.5°F (21.4°C) to a mild 55.4°F (13°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Lewiston, Minnesota, with an average temperature ranging between min 28.4°F (-2°C) and max 41°F (5°C). Witnessing a clear downswing, the average high-temperature during November drops from October's moderate 55.4°F (13°C) to an icy 41°F (5°C). Weather in November »Weather in December
December, the first month of the winter in Lewiston, is also a subzero cold month, with an average temperature fluctuating between 15.8°F (-9°C) and 26.1°F (-3.3°C). As December begins, there is a noticeable decrease in the average high-temperature, falling from an icy 41°F (5°C) in November to a subzero cold 26.1°F (-3.3°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
January, marked by an average high-temperature of 20.7°F (-6.3°C) and a low-temperature of 7.5°F (-13.6°C), is the coldest month in Lewiston, Minnesota.
With an average relative humidity of 91%, January is the most humid month in Lewiston.
The month with the least rainfall in Lewiston, Minnesota, is January, when the rain falls for 2.4 days and typically collects 0.75" (19mm) of precipitation.
Throughout the year, there are 122.7 rainfall days, and 24.06" (611mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
In Lewiston, during the entire year, snow falls for 59.2 days and aggregates up to 21.65" (550mm) of snow.
The month with the least sunshine is January, with an average of 3.2h of sunshine.
The months with the lowest UV index in Lewiston, Minnesota, are January, February, November and December, with an average maximum UV index of 1.
February is the month with the most snowfall in Lewiston, Minnesota. Snow falls for 12 days and accumulates 5.94" (151mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Lewiston, 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 Lewiston is June, when the rain falls for 18.2 days and typically aggregates up to 4.33" (110mm) of precipitation.
June through September are months without snowfall.
June has the longest days of the year in Lewiston, Minnesota, with an average of 15h and 24min of daylight.
Lewiston's warmest month, July, registers temperatures that range from a high of 78.3°F (25.7°C) to a low of 61.3°F (16.3°C).
The month with the most sunshine is July, with an average of 9.6h of sunshine.
With an average maximum UV index of 6, July is the month with the highest UV index.
October is the least humid month, with an average relative humidity of 75%.
December has the shortest days of the year, with an average of 9h and 0min of daylight.
Average temperature
Lewiston, MN
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (20.7°F).
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure
Lewiston, MN
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Lewiston, MN
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.7mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7mph - Average wind speed in September:
8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity
Lewiston, MN
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall
Lewiston, MN
- Average rainfall in January:
0.75" - Average rainfall in February:
1.02" - Average rainfall in March:
1.18" - Average rainfall in April:
2.32" - Average rainfall in May:
3.15" - Average rainfall in June:
4.33"
- Average rainfall in July:
3.07" - Average rainfall in August:
2.36" - Average rainfall in September:
1.89" - Average rainfall in October:
1.85" - Average rainfall in November:
1.02" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days
Lewiston, MN
- Average rainfall days in January:
2.4 days - Average rainfall days in February:
1.9 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
18.2 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
13.2 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.6 days - Average rainfall days in November:
6.3 days - Average rainfall days in December:
2.9 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (1.9 days).
Average snowfall
Lewiston, MN
- Average snowfall in January:
3.74" - Average snowfall in February:
5.94" - Average snowfall in March:
2.87" - Average snowfall in April:
2.64" - Average snowfall in May:
0.67" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Lewiston, MN
- Average snowfall days in January:
14.3 days - Average snowfall days in February:
12 days - Average snowfall days in March:
9 days - Average snowfall days in April:
3.4 days - Average snowfall days in May:
0.4 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:
1.5 days - Average snowfall days in November:
5.8 days - Average snowfall days in December:
12.8 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Lewiston, MN
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 12min - Average sunshine in February:
3h and 18min - Average sunshine in March:
5h and 6min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 6min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
9h and 36min - Average sunshine in August:
9h and 30min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 6min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days
Lewiston, MN
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
16.6 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
9.3 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
14.2 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
18 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.3 days).
Average UV index
Lewiston, MN
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Lewiston, MN
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Lewiston, MN
The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).
