Andover, United States experiences average highs of 13°C (55°F) and lows of 4°C (39°F) throughout the year. Rainfall is moderate, averaging about 9 rainy days per month. Average highs have stayed broadly stable across the available records.
Andover, United States Weather & Climate 2026
Monthly climate averages for Andover, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Apr–Sep At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5/10
Best: May, June, July, August, September
UV Index
4
Low
Temperature 13°C / 4°C
Feels Like 11°C / 1°C
Rainy Days 9
Rainfall 75 mm
Sunshine 8 h
Humidity 69%
Wind Speed 18 km/h
Dew Point 3°C
Snow Days 7 days
Frost Days 20 days
Hottest Month
28°C
July
Avg Low19°C
Rain11days
Coldest Month
-12°C
January
Avg High-4°C
Rain5days
Driest Month
5days
January
Avg High-4°C
Avg Low-12°C
Windiest Month
21 km/h
April (Gusts 45)
Worst Time to Visit
Consider avoiding January, March, November, December due to very cold temperatures.
Sun Position
Sunrise 05:26
Daylight 15.6h
Sunset 21:04
Live conditions—
Andover on the map · live conditions
Andover, United States
- Continent
- Americas
- Country
- United States
- City
- Andover
- Population
- 32.2K
- Elevation
- 271 m
- Coordinates
- 45.23°, -93.29°
Seasonal Breakdown
Spring
Mar–May
Avg High 13°C
Avg Low 3°C
Rain 10 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 27°C
Avg Low 18°C
Rain 12 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 15°C
Avg Low 7°C
Rain 8 days/mo
1/3 best months
Winter
Dec–Feb
Avg High -3°C
Avg Low -11°C
Rain 6 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: -4°C / -12°C . Feb: -2°C / -12°C . Mar: 6°C / -4°C . Apr: 12°C / 2°C . May: 21°C / 10°C . Jun: 27°C / 17°C . Jul: 28°C / 19°C . Aug: 27°C / 18°C . Sep: 23°C / 15°C . Oct: 15°C / 7°C . Nov: 6°C / -1°C . Dec: -1°C / -9°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 22 mm. Feb: 27 mm. Mar: 58 mm. Apr: 99 mm. May: 103 mm. Jun: 103 mm. Jul: 95 mm. Aug: 134 mm. Sep: 95 mm. Oct: 76 mm. Nov: 43 mm. Dec: 47 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 76%. Feb: 72%. Mar: 67%. Apr: 66%. May: 64%. Jun: 64%. Jul: 68%. Aug: 71%. Sep: 70%. Oct: 68%. Nov: 70%. Dec: 76%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 19 km/h . Mar: 19 km/h . Apr: 21 km/h . May: 18 km/h . Jun: 19 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 18 km/h . Oct: 19 km/h . Nov: 19 km/h . Dec: 18 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 7h. Mar: 8h. Apr: 8h. May: 10h. Jun: 12h. Jul: 12h. Aug: 11h. Sep: 9h. Oct: 7h. Nov: 6h. Dec: 5h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 10 days. Feb: 9 days. Mar: 7 days. Apr: 5 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 1 days. Nov: 6 days. Dec: 11 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 11 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 28°C | Jul · 28°C |
| Coldest month | Feb 2025 · -14°C | Jan · -12°C |
| Wettest month | Jun 2025 · 186 mm | Aug · 134 mm |
| Windiest month | Mar 2025 · 22 km/h | Apr · 21 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May best
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -4°C / -12°C | -9°C / -17°C | 5days (22 mm) Good | 5.4h Fair | 76% Humid | 2 Low | Poor | View Details |
| February | -2°C / -12°C | -7°C / -17°C | 6days (27 mm) Good | 7.4h Good | 72% Muggy | 3.2 Moderate | Poor | View Details |
| March | 6°C / -4°C | 2°C / -8°C | 7days (58 mm) Good | 8.1h Good | 67% Muggy | 4.2 Moderate | Poor | View Details |
| April | 12°C / 2°C | 9°C / -2°C | 11days (99 mm) Wet | 8.4h Good | 66% Muggy | 4.9 Moderate | Poor | View Details |
| May best | 21°C / 10°C | 19°C / 8°C | 11days (103 mm) Wet | 10.3h Excellent | 64% Muggy | 6.4 High | Good | View Details |
| June best | 27°C / 17°C | 27°C / 16°C | 12days (103 mm) Wet | 12.1h Excellent | 64% Muggy | 6.5 High | Excellent | View Details |
| July best | 28°C / 19°C | 30°C / 20°C | 11days (95 mm) Wet | 12.4h Excellent | 68% Muggy | 6.9 High | Excellent | View Details |
| August best | 27°C / 18°C | 28°C / 18°C | 12days (134 mm) Wet | 10.8h Excellent | 71% Muggy | 6.2 High | Excellent | View Details |
| September best | 23°C / 15°C | 23°C / 14°C | 10days (95 mm) Wet | 9.2h Good | 70% Muggy | 5 Moderate | Excellent | View Details |
| October | 15°C / 7°C | 12°C / 4°C | 9days (76 mm) Wet | 7.2h Good | 68% Muggy | 3.4 Moderate | Fair | View Details |
| November | 6°C / -1°C | 2°C / -6°C | 6days (43 mm) Good | 5.6h Fair | 70% Muggy | 2.2 Moderate | Poor | View Details |
| December | -1°C / -9°C | -6°C / -14°C | 7days (47 mm) Good | 4.7h Fair | 76% Humid | 1.7 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Andover are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Andover, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Andover is July, with average daytime highs of 28°C (83°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Andover is January, with average overnight lows of -12°C (10°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Andover is August, averaging 134mm of precipitation across 12 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Andover runs through June, August, April, May, with the heaviest rainfall in June. Based on 10-year averages for Andover.
Andover receives approximately 102 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Andover.
The least favorable months to visit Andover are January, March, November, December, primarily due to very cold temperatures. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Andover is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Andover is 69%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Andover receives snow. Months with snowfall average 7 snow days and 13 cm (5 in) of accumulation, with about 20 frost days during winter.
Average wind speeds in Andover are 18 km/h (11 mph). The windiest month is April with peak winds reaching 21 km/h (13 mph) (gusts up to 45 km/h / 28 mph).
Andover averages 4 clear-sky days per month with overall cloud cover around 59%. The clearest skies occur in August.
The annual average dew point in Andover is 3°C (37°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Andover has a Hot-Summer Continental climate, classified as Dfa under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Andover ranges from 1°C (34°F) to 11°C (52°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Andover. It earns a climate score of 8.4/10 with Excellent.
For June in Andover, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 27°C (80°F) and 12 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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