Climate and monthly weather forecastAndover, MN
Climate and monthly weather forecast
The climate of Andover
Andover is characterized by a humid continental climate, with no dry season and a warm summer. This climate type, defined by the Köppen climate classification as Dfb, shapes the yearly weather patterns in the region. A dominant feature of Andover's climate is the striking changes in temperatures, humidity, rainfall, wind speed, and other weather parameters throughout the year.Average high temperatures range from a chilly 19.2°F (-7.1°C) in January to a warm 80.1°F (26.7°C) in July. Meanwhile, average low temperatures show a parallel trend, moving from 7.2°F (-13.8°C) in January up to 62.2°F (16.8°C) in July. Similarly, the relative humidity fluctuates too, ranging from 71% in April to 90% in January. These data highlight the variety and unpredictability that mark Andover’s weather on an annual basis.
Rainfall varies in a more complex pattern, averaging between a minimum of 0.47" (12mm) in January and reaching a maximum of 3.74" (95mm) in June. The frequency of rainy days displays a related trend, hitting a peak of 16.8 days in June. Following a similar progression, snowfall, equally crucial in defining the climate, shows significant amounts from 3.15" (80mm) in January to none between May to September.
The climate in Andover completes its demonstration of variability with daylight hours peaking at 15.6 hours in June dropping to 8.8 hours in December. Correspondingly, sunlight hours sway from 10.2 hours per day in the sunniest month, July, to a meager 3.1 hours per day in the darkest month, January. Such variations give Andover a distinctive climatic character, marked by contrast and changes.
The best time to visit Andover
Evaluating weather elements, the best time to visit Andover would be in the summer months, specifically from June to August. During this period, the region enjoys average high temperatures between 74.8°F (23.8°C) to 80.1°F (26.7°C). Humidity levels are moderate, and rainfall is relatively low, especially in August. While the average duration of daylight is extensive, the sunshine hours also meet their peak during this season. This mix of favorable conditions provides optimum circumstances for outdoor recreational activities and sightseeing in Andover.The worst time to visit Andover
Taking into account Andover's weather patterns, the least favorable period for a visit would be the winter months, particularly from December to February. The cold becomes especially severe during these months, with average high and low temperatures ranging from 19.2°F (-7.1°C) to 23.2°F (-4.9°C) and 7.2°F (-13.8°C) to 9.9°F (-12.3°C), respectively. Adding to the harshness of the climate is the short duration of daylight, the fewer sunshine hours and the substantial probability of snow, possibly hindering outdoor activities.Spring weather in Andover
Spring in Andover, from March to May, witnesses a considerable rise in temperature and daylight hours. Average high temperatures ascend from 38.8°F (3.8°C) in March to 65.3°F (18.5°C) in May, whereas low temperatures show a similar increase from 24.8°F (-4°C) to 48.6°F (9.2°C). The lengthening of daylight hours from 12 hours in March to 14.9 hours in May, accompanied by increasing sunshine hours, contributes to the return of warmth. Rainfall also increases during this period, with May receiving the highest amount.Summer weather in Andover
The summer, extending from June to August, brings the year's warmest temperatures and longest daylight durations. High temperatures hover from 74.8°F (23.8°C) to 80.1°F (26.7°C), while low temperatures stay between 57.9°F (14.4°C) to 62.2°F (16.8°C). While rainfall peaks in June, it starts declining from July onward. The daylight duration remains long, and sunshine hours reach their maximum, making it an ideal season for outdoor activities.Autumn weather in Andover
Autumn, from September to November, observes a gradual decline in temperatures, with average highs falling from 70.3°F (21.3°C) in September to 39.7°F (4.3°C) in November. Simultaneously, daylight hours and sunshine hours start reducing. Rainfall decreases slightly during these months, providing relatively dry weather.Winter weather in Andover
Winter in Andover, lasting from December to February, brings frigid temperatures, extensive snowfall, and fewer daylight hours. Average high temperatures dwindle between 19.2°F (-7.1°C) to 24.4°F (-4.2°C), while average lows plunge to 7.2°F (-13.8°C) in January. The prospect of snowfall is particularly high during this period, especially in January, when snowfall reaches 4.02" (102mm). The short daylight hours, coupled with minimal sunshine, add to the relative harshness of this season.Weather in January
Starting the year, Andover sees quite cold and relatively dry conditions. January experiences the second highest snowfall of the year with 3.15" (80mm). Seeing less sunshine and more overcast skies, shorter daylight hours are accompanied by colder temperatures. Weather in January »Weather in February
February in Andover experiences a slight rise in temperatures compared to January, however, it remains quite frigid. The month sees the highest snowfall of the year, measuring 4.02" (102mm). Relative humidity also exhibits a slight decrease compared to the preceding month. Weather in February »Weather in March
March experiences significant weather changes as Andover transitions from winter to spring. Notably, the temperature ranges from 24.8°F (-4°C) to 38.8°F (3.8°C), providing a more accommodating environment for outdoor activities. Weather in March »Weather in April
Moving into April, Andover starts to see the signs of true spring weather. April sees a substantial decrease in snowfall, registering just 2.52" (64mm). The cold of the previous months starts to ease with temperatures becoming much milder. Weather in April »Weather in May
May showcases spring in all its glory in Andover with lovely weather conditions. The month often experiences maximum rainfall of 2.6" (66mm). Temperatures continue to rise in May, aiding in the overall pleasant weather conditions. With longer daylight hours and a growing UV Index, it is the perfect time for enjoying the outdoors. Weather in May »Weather in June
June is the official onset of summer in Andover with warmer temperatures and longer days. The month is the wettest of the year with a rainfall of 3.74" (95mm). Despite this increase in rainfall, June receives a good amount of sunshine making it ideal for outdoor activities. Weather in June »Weather in July
July is the heart of summer in Andover, with temperature reaching all-time highs for the year. The recorded mean temperature soars to 80.1°F (26.7°C), observing the hottest days. Even though temperatures peak, the humidity remains relatively moderate, and rainfall subsides compared to the previous month. Weather in July »Weather in August
August brings a slight cool down in Andover, reducing the intensity of the July heat. The temperatures decline slightly, falling to 78.1°F (25.6°C), but it still remains a warm month. Rainfall follows a similar pattern, decreasing from the highs of June. Weather in August »Weather in September
September in Andover marks the arrival of autumn and sees a significant change in weather patterns. The days start getting shorter, and temperatures comfortably settle at 70.3°F (21.3°C). September is an excellent time of the year for outdoor activities as it offers beautiful fall views. Weather in September »Weather in October
October in Andover characterizes the heart of autumn. Temperatures drop to around 54.5°F (12.5°C), providing a crisp and cool climate. It is an ideal time for hiking and other outdoor adventures as Mother nature showcases her lovely autumn colors. Weather in October »Weather in November
November sees the winter season setting in Andover, with a transition to cooler temperatures. The average temperature dips down to 39.7°F (4.3°C), providing a substantial contrast to the previous months. As the fall foliage fades, the weather starts tending towards the grayer and colder winter days. Weather in November »Weather in December
December wraps up the year in Andover with a true winter weather. A low average temperature of 24.4°F (-4.2°C) solidifies that winter is in full swing. Despite being cold, the city glistens under the holiday lights, providing a picturesque winter backdrop. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Andover, MN
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (19.2°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure
Andover, 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:
29.96"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.94"Hg - Average pressure in September:
30"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.1"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
Andover, MN
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.6mph - Average wind speed in April:
9.3mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.7mph - Average wind speed in October:
8.6mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Andover, MN
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (71%).
Average rainfall
Andover, MN
- Average rainfall in January:
0.47" - Average rainfall in February:
0.63" - Average rainfall in March:
1.3" - Average rainfall in April:
1.93" - Average rainfall in May:
2.6" - Average rainfall in June:
3.74"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.36" - Average rainfall in September:
1.73" - Average rainfall in October:
1.65" - Average rainfall in November:
1.02" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days
Andover, MN
- Average rainfall days in January:
2.4 days - Average rainfall days in February:
2 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
15.5 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
6.1 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2 days).
Average snowfall
Andover, MN
- Average snowfall in January:
3.15" - Average snowfall in February:
4.02" - Average snowfall in March:
2.99" - Average snowfall in April:
2.52" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is December (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Andover, MN
- Average snowfall days in January:
12.3 days - Average snowfall days in February:
11 days - Average snowfall days in March:
8.2 days - Average snowfall days in April:
4.3 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:
1.6 days - Average snowfall days in November:
5.8 days - Average snowfall days in December:
11.4 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Andover, MN
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
3h and 6min - Average sunshine in February:
3h and 18min - Average sunshine in March:
5h and 6min - Average sunshine in April:
7h and 24min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 48min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 42min - Average sunshine in December:
3h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days
Andover, MN
- Average sunshine days in January:
18.6 days - Average sunshine days in February:
16.7 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
13.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
12.4 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
18 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is January (18.6 days).
The month with the least sunshine days is June (10.3 days).
Average UV index
Andover, MN
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Andover, MN
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility
Andover, MN
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





