UTC Offset
UTC-04:00
Grafton, United States Snapshot 2026
Where is Grafton?
Grafton, United States
- Continent
- Americas
- Country
- United States
- City
- Grafton
- Population
- 16.6K
- Elevation
- 145 m
- Coordinates
- 42.21°, -71.69°
Grafton is a city in United States with a population of approximately 16.6K. Average temperatures range from -5°C (23°F) in January to 28°C (83°F) in July. The best time to visit is June, July, August, September, October. The city sits at an elevation of 145 m above sea level.
Time in Grafton right now
Open full time & time zone page 14:19 19
Monday, June 15, 2026
IANA time zone
America/New_York
Daylight saving
DST in effect
EST / EDT
Next DST change
November 1
backward -1h
Live weather in Grafton
Daylight in Grafton today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 15m
Climate normals for Grafton
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October best
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 2°C / -5°C | -2°C / -10°C | 10days (91 mm) Wet | 5.9h Fair | 68% Muggy | 2.2 Moderate | Poor | View Details |
| February | 4°C / -4°C | 0°C / -9°C | 9days (84 mm) Wet | 6.8h Fair | 70% Muggy | 3.3 Moderate | Poor | View Details |
| March | 8°C / -1°C | 4°C / -6°C | 11days (100 mm) Wet | 7.9h Good | 66% Muggy | 4.3 Moderate | Poor | View Details |
| April | 14°C / 4°C | 11°C / 0°C | 12days (108 mm) Wet | 8.4h Good | 68% Muggy | 5.1 High | Fair | View Details |
| May | 20°C / 10°C | 19°C / 8°C | 13days (99 mm) Wet | 9.4h Good | 72% Muggy | 6.1 High | Good | View Details |
| June best | 25°C / 15°C | 26°C / 15°C | 12days (87 mm) Wet | 10.8h Excellent | 71% Muggy | 6.8 High | Excellent | View Details |
| July best | 28°C / 19°C | 30°C / 20°C | 13days (122 mm) Wet | 11h Excellent | 73% Muggy | 6.9 High | Excellent | View Details |
| August best | 27°C / 18°C | 29°C / 19°C | 11days (99 mm) Wet | 10.5h Excellent | 73% Muggy | 6.4 High | Excellent | View Details |
| September best | 23°C / 15°C | 23°C / 14°C | 9days (99 mm) Wet | 8.5h Good | 76% Humid | 5.1 High | Excellent | View Details |
| October best | 17°C / 9°C | 15°C / 7°C | 10days (108 mm) Wet | 6.9h Fair | 76% Humid | 3.8 Moderate | Good | View Details |
| November | 10°C / 2°C | 6°C / -2°C | 9days (81 mm) Wet | 6.5h Fair | 71% Muggy | 2.7 Moderate | Poor | View Details |
| December | 4°C / -3°C | 0°C / -7°C | 11days (124 mm) Wet | 5.5h Fair | 72% Muggy | 1.9 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 2°C / -5°C . Feb: 4°C / -4°C . Mar: 8°C / -1°C . Apr: 14°C / 4°C . May: 20°C / 10°C . Jun: 25°C / 15°C . Jul: 28°C / 19°C . Aug: 27°C / 18°C . Sep: 23°C / 15°C . Oct: 17°C / 9°C . Nov: 10°C / 2°C . Dec: 4°C / -3°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 91 mm. Feb: 84 mm. Mar: 100 mm. Apr: 108 mm. May: 99 mm. Jun: 87 mm. Jul: 122 mm. Aug: 99 mm. Sep: 99 mm. Oct: 108 mm. Nov: 81 mm. Dec: 124 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 68%. Feb: 70%. Mar: 66%. Apr: 68%. May: 72%. Jun: 71%. Jul: 73%. Aug: 73%. Sep: 76%. Oct: 76%. Nov: 71%. Dec: 72%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 19 km/h . Mar: 20 km/h . Apr: 19 km/h . May: 17 km/h . Jun: 15 km/h . Jul: 14 km/h . Aug: 14 km/h . Sep: 15 km/h . Oct: 17 km/h . Nov: 19 km/h . Dec: 19 km/h .
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.
Frequently Asked Questions
Grafton has a population of approximately 16.6K.
The best months to visit Grafton are June, July, August, September, October, when temperatures are pleasant and rainfall is lower.
Grafton receives approximately 1202mm of rainfall annually across 130 rainy days.
Grafton is located in United States, in the Americas region.
Grafton sits at an elevation of 145 m (476 ft) above sea level.