Hartley, California Climate
United States
Pop. 2,510 Elev. 39 m / 128 ft
TZ: America/Los_Angeles (UTC-7) ·
Hartley has a dry climate with hot summers reaching 95°F (35°C) in August and cool winters averaging 41°F (5°C) in January. Humidity pushes the summer feels-like temperature to around 101°F (38°C). Rain falls on about 24 days per year (19.6 in / 497 mm total). The city averages 223 sunny days per year. Ocean water temperatures reach 62°F (17°C) in summer.
| Temperature | 95°F (35°C) high | 41°F (5°C) low |
| Feels like | 101°F (38°C) high | 39°F (4°C) low |
| Rain | 24 days | 19.6 in (497 mm) /yr |
| Sky | 223 sunny | 18 stormy |
| Wind | 3.2 mph (1.4 m/s) avg |
Looking for a place with a climate like Hartley? Explore and filter 150,000+ cities worldwide.
Explore on the MapMonthly Climate Chart
Best months to visit: Jan, Apr, May, Oct
Sky & Air by Month
Cloud cover (%)
28
Jan 59
Feb 54
Mar 42
Apr 19
May 8
Jun 13
Jul 10
Aug 30
Sep 38
Oct 62
Nov 59
Dec Humidity (%)
50
Jan 66
Feb 63
Mar 52
Apr 40
May 45
Jun 52
Jul 44
Aug 52
Sep 58
Oct 76
Nov 79
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 30 mi Buchanan Field (CCR)
Ski resort 106 mi Sugar Bowl Resort
National park 24 mi Old Sacramento State Historic Park
Mountain peak
(6,113 ft) 71 mi Goat Mountain
Hospital 2 mi Kaiser Permanente Vacaville Medical Center
Hiking trail 18 mi ADT - California - T - Seg 6
Interested in Hartley?
Hotels
Flights
Real Estate
Insurance
Connectivity
Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 63°F 17°C | 41°F 5°C | 0.5 in 13 mm | — | 22 |
| February | 63°F 17°C | 44°F 7°C | 7.0 in 177 mm | — | 8 |
| March | 67°F 20°C | 45°F 7°C | 2.5 in 62 mm | 0.2 in5 mm | 11 |
| April | 77°F 25°C | 50°F 10°C | 0.2 in 6 mm | — | 14 |
| May | 87°F 30°C | 56°F 14°C | 0.1 in 2 mm | — | 26 |
| June | 90°F 32°C | 57°F 14°C | 0.0 in 0 mm | — | 29 |
| July | 89°F 32°C | 58°F 15°C | 0.0 in 1 mm | — | 29 |
| August | 95°F 35°C | 61°F 16°C | 0.0 in 0 mm | — | 30 |
| September | 89°F 32°C | 61°F 16°C | 0.1 in 3 mm | — | 20 |
| October | 77°F 25°C | 53°F 11°C | 2.1 in 52 mm | — | 18 |
| November | 67°F 20°C | 49°F 9°C | 3.4 in 86 mm | — | 6 |
| December | 57°F 14°C | 45°F 7°C | 3.7 in 94 mm | — | 10 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 22 | 1 |
| February | 8 | 4 |
| March | 11 | 3 |
| April | 14 | 0 |
| May | 26 | 0 |
| June | 29 | 0 |
| July | 29 | 0 |
| August | 30 | 0 |
| September | 20 | 0 |
| October | 18 | 2 |
| November | 6 | 4 |
| December | 10 | 4 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 53°F 12°C | 49°F 10°C |
| February | 54°F 12°C | 49°F 10°C |
| March | 55°F 13°C | 52°F 11°C |
| April | 56°F 13°C | 58°F 15°C |
| May | 55°F 13°C | 64°F 18°C |
| June | 57°F 14°C | 67°F 19°C |
| July | 60°F 16°C | 67°F 20°C |
| August | 61°F 16°C | 71°F 22°C |
| September | 62°F 17°C | 72°F 22°C |
| October | 62°F 17°C | 65°F 18°C |
| November | 58°F 14°C | 59°F 15°C |
| December | 56°F 14°C | 53°F 11°C |