Keene, United States experiences average highs of 15°C (59°F) and lows of 5°C (41°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Average highs have cooled by 1.1°C (2.0°F) across the available records.
Keene, United States Weather & Climate 2026
Monthly climate averages for Keene, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Nov 
Wetter season: Mar–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.1/10
Best: May, June, July, August, September
UV Index
4
Low
Temperature 15°C / 5°C
Feels Like 13°C / 3°C
Rainy Days 10
Rainfall 92 mm
Sunshine 8 h
Humidity 72%
Wind Speed 16 km/h
Dew Point 5°C
Snow Days 8 days
Frost Days 17 days
Hottest Month
29°C
July
Avg Low18°C
Rain12days
Coldest Month
-7°C
January
Avg High1°C
Rain9days
Driest Month
8days
September
Avg High23°C
Avg Low14°C
Windiest Month
19 km/h
March (Gusts 46)
Worst Time to Visit
Consider avoiding January, February, March, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 05:11
Daylight 15.3h
Sunset 20:31
Live conditions—
Keene on the map · live conditions
Keene, United States
- Continent
- Americas
- Country
- United States
- City
- Keene
- Population
- 23.3K
- Elevation
- 148 m
- Coordinates
- 42.93°, -72.28°
Seasonal Breakdown
Spring
Mar–May
Avg High 13°C
Avg Low 3°C
Rain 12 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 27°C
Avg Low 17°C
Rain 11 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 16°C
Avg Low 8°C
Rain 9 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 2°C
Avg Low -6°C
Rain 10 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: 1°C / -7°C . Feb: 3°C / -7°C . Mar: 7°C / -3°C . Apr: 13°C / 3°C . May: 20°C / 9°C . Jun: 25°C / 15°C . Jul: 29°C / 18°C . Aug: 27°C / 17°C . Sep: 23°C / 14°C . Oct: 16°C / 8°C . Nov: 8°C / 1°C . Dec: 3°C / -5°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 84 mm. Feb: 81 mm. Mar: 88 mm. Apr: 105 mm. May: 87 mm. Jun: 80 mm. Jul: 105 mm. Aug: 82 mm. Sep: 82 mm. Oct: 112 mm. Nov: 82 mm. Dec: 112 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 71%. Feb: 71%. Mar: 67%. Apr: 69%. May: 72%. Jun: 69%. Jul: 71%. Aug: 71%. Sep: 74%. Oct: 77%. Nov: 74%. Dec: 74%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 18 km/h . Feb: 18 km/h . Mar: 19 km/h . Apr: 18 km/h . May: 16 km/h . Jun: 15 km/h . Jul: 14 km/h . Aug: 13 km/h . Sep: 13 km/h . Oct: 16 km/h . Nov: 17 km/h . Dec: 17 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 8h. Apr: 8h. May: 10h. Jun: 11h. Jul: 11h. 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 4. Nov: UV 3. 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: 11 days. Feb: 11 days. Mar: 8 days. Apr: 4 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 5 days. Dec: 10 days.
Climate Trends
Average highs have cooled by 1.1°C (2.0°F) across the available records. Average rainfall is trending wetter by about 16 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 30°C | Jul · 29°C |
| Coldest month | Feb 2025 · -9°C | Jan · -7°C |
| Wettest month | May 2025 · 230 mm | Oct · 112 mm |
| Windiest month | Jan 2025 · 20 km/h | Mar · 19 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May best
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 1°C / -7°C | -4°C / -12°C | 9days (84 mm) Wet | 5.7h Fair | 71% Muggy | 2.1 Moderate | Poor | View Details |
| February | 3°C / -7°C | -1°C / -11°C | 10days (81 mm) Wet | 6.7h Fair | 71% Muggy | 3.2 Moderate | Poor | View Details |
| March | 7°C / -3°C | 3°C / -7°C | 11days (88 mm) Wet | 7.8h Good | 67% Muggy | 4 Moderate | Poor | View Details |
| April | 13°C / 3°C | 11°C / 0°C | 13days (105 mm) Wet | 8.3h Good | 69% Muggy | 5.2 High | Fair | View Details |
| May best | 20°C / 9°C | 19°C / 7°C | 11days (87 mm) Wet | 9.5h Good | 72% Muggy | 5.9 High | Good | View Details |
| June best | 25°C / 15°C | 26°C / 14°C | 11days (80 mm) Wet | 10.8h Excellent | 69% Muggy | 6.6 High | Excellent | View Details |
| July best | 29°C / 18°C | 30°C / 20°C | 12days (105 mm) Wet | 11.1h Excellent | 71% Muggy | 7 High | Excellent | View Details |
| August best | 27°C / 17°C | 28°C / 18°C | 10days (82 mm) Wet | 10.6h Excellent | 71% Muggy | 6.4 High | Excellent | View Details |
| September best | 23°C / 14°C | 23°C / 13°C | 8days (82 mm) Wet | 8.9h Good | 74% Muggy | 5.2 High | Excellent | View Details |
| October | 16°C / 8°C | 15°C / 6°C | 10days (112 mm) Wet | 6.7h Fair | 77% Humid | 3.7 Moderate | Good | View Details |
| November | 8°C / 1°C | 5°C / -3°C | 9days (82 mm) Wet | 6.1h Fair | 74% Muggy | 2.5 Moderate | Poor | View Details |
| December | 3°C / -5°C | -1°C / -9°C | 11days (112 mm) Wet | 5.3h Fair | 74% Muggy | 1.8 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Keene 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 Keene, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Keene is July, with average daytime highs of 29°C (83°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Keene is January, with average overnight lows of -7°C (19°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Keene is October, averaging 112mm of precipitation across 10 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Keene runs through April, July, March, May, with the heaviest rainfall in April. Based on 10-year averages for Keene.
Keene receives approximately 98 sunshine hours per year. The sunniest month is July with around 11 hours. Based on climate data for Keene.
The least favorable months to visit Keene are January, February, March, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Keene is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Keene is 72%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Keene receives snow. Months with snowfall average 8 snow days and 23 cm (9 in) of accumulation, with about 17 frost days during winter.
Average wind speeds in Keene are 16 km/h (10 mph). The windiest month is March with peak winds reaching 19 km/h (12 mph) (gusts up to 46 km/h / 29 mph).
Keene averages 3 clear-sky days per month with overall cloud cover around 61%. The clearest skies occur in September.
The annual average dew point in Keene is 5°C (41°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Keene 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 Keene ranges from 3°C (37°F) to 13°C (55°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Keene. It earns a climate score of 8.5/10 with Excellent.
For June in Keene, pack Umbrella, Waterproof jacket, Breathable clothing, Sunscreen (SPF 30+), Sun hat. With average highs of 25°C (78°F) and 11 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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