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Holliston, United States Snapshot 2026
Where is Holliston?
Holliston, United States
- Continent
- Americas
- Country
- United States
- City
- Holliston
- Population
- 14K
- Elevation
- 59 m
- Coordinates
- 42.20°, -71.42°
Holliston is a city in United States with a population of approximately 14K. Average temperatures range from -4°C (24°F) in January to 29°C (83°F) in July. The best time to visit is June, July, August, September, October.
Time in Holliston right now
Open full time & time zone page 00:08 08
Tuesday, June 16, 2026
IANA time zone
America/New_York
Daylight saving
DST in effect
EST / EDT
Next DST change
November 1
backward -1h
Live weather in Holliston
Daylight in Holliston today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 15m
Climate normals for Holliston
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 | 3°C / -4°C | -1°C / -9°C | 9days (89 mm) Wet | 5.9h Fair | 67% Muggy | 2.2 Moderate | Poor | View Details |
| February | 5°C / -4°C | 1°C / -9°C | 9days (80 mm) Wet | 6.8h Fair | 69% Muggy | 3.2 Moderate | Poor | View Details |
| March | 9°C / -1°C | 5°C / -5°C | 10days (99 mm) Wet | 7.8h Good | 66% Muggy | 4.3 Moderate | Poor | View Details |
| April | 14°C / 5°C | 12°C / 1°C | 12days (102 mm) Wet | 8.4h Good | 68% Muggy | 5.1 High | Fair | View Details |
| May | 20°C / 10°C | 19°C / 8°C | 12days (94 mm) Wet | 9.5h Good | 72% Muggy | 6.2 High | Good | View Details |
| June best | 25°C / 16°C | 26°C / 15°C | 11days (79 mm) Wet | 10.8h Excellent | 72% Muggy | 6.7 High | Excellent | View Details |
| July best | 29°C / 20°C | 31°C / 21°C | 13days (104 mm) Wet | 11h Excellent | 73% Muggy | 6.9 High | Excellent | View Details |
| August best | 28°C / 19°C | 29°C / 20°C | 10days (85 mm) Wet | 10.6h Excellent | 73% Muggy | 6.4 High | Excellent | View Details |
| September best | 23°C / 15°C | 24°C / 15°C | 8days (89 mm) Wet | 8.5h Good | 76% Humid | 5 Moderate | Excellent | View Details |
| October best | 18°C / 10°C | 16°C / 8°C | 9days (104 mm) Wet | 7h Good | 76% Humid | 3.8 Moderate | Good | View Details |
| November | 11°C / 3°C | 7°C / -1°C | 9days (76 mm) Wet | 6.5h Fair | 71% Muggy | 2.6 Moderate | Poor | View Details |
| December | 5°C / -2°C | 1°C / -7°C | 10days (116 mm) Wet | 5.6h Fair | 72% Muggy | 1.9 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 3°C / -4°C . Feb: 5°C / -4°C . Mar: 9°C / -1°C . Apr: 14°C / 5°C . May: 20°C / 10°C . Jun: 25°C / 16°C . Jul: 29°C / 20°C . Aug: 28°C / 19°C . Sep: 23°C / 15°C . Oct: 18°C / 10°C . Nov: 11°C / 3°C . Dec: 5°C / -2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 89 mm. Feb: 80 mm. Mar: 99 mm. Apr: 102 mm. May: 94 mm. Jun: 79 mm. Jul: 104 mm. Aug: 85 mm. Sep: 89 mm. Oct: 104 mm. Nov: 76 mm. Dec: 116 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 67%. Feb: 69%. Mar: 66%. Apr: 68%. May: 72%. Jun: 72%. Jul: 73%. Aug: 73%. Sep: 76%. Oct: 76%. Nov: 71%. Dec: 72%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 18 km/h . Feb: 19 km/h . Mar: 19 km/h . Apr: 19 km/h . May: 16 km/h . Jun: 15 km/h . Jul: 14 km/h . Aug: 14 km/h . Sep: 14 km/h . Oct: 16 km/h . Nov: 18 km/h . Dec: 18 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
Holliston has a population of approximately 14K.
The best months to visit Holliston are June, July, August, September, October, when temperatures are pleasant and rainfall is lower.
Holliston receives approximately 1117mm of rainfall annually across 122 rainy days.
Holliston is located in United States, in the Americas region.
Holliston sits at an elevation of 59 m (194 ft) above sea level.