Fresno, CA Climate & Monthly Averages
The climate of Fresno
A 22°C spread between its warmest and coolest months puts Fresno among the more strongly seasonal places we cover. July averages 103°F (40°C) by day; December averages 57°F (14°C), with nights at 40°F (4°C).
Climate quick facts
- Hottest month: July - highs near 103°F (40°C)
- Coldest month: December - highs near 57°F (14°C)
- Decade extremes (2015-2024): 118°F (48°C) high · 26°F (-3°C) low
- Wettest month: March (8 rainy days) · Sunniest: July (13.9 h sun/day)
- Climate type: semi-arid
- Annual swing: 22°C between the average warmest and coolest month · day to night: 14°C
- Months averaging 30°C or hotter: 4
- Average humidity: 51%
Temperatures through the year
December sits at the other end of the year: 57°F (14°C) by day, 40°F (4°C) at night. At its warmest, in July, Fresno runs to 103°F (40°C) in the afternoon and back to 73°F (23°C) by dawn. The gridded 2015-2024 daily record for this location tops out at 118°F (48°C) and bottoms at 26°F (-3°C) - decade extremes, not all-time station records. Snowfall is rare but not unheard of.
Rain, sun and snow
July is the brightest month at 13.9 hours of sun a day, against an annual average of 10.8 - sunnier than 91% of the 3496 cities in our dataset. Average highs hold at or above 30°C for 4 months of the year, June through September being the unbroken run.
How Fresno compares
- Afternoons run 14°C above the following night - a bigger day-to-night gap than any other city in our 3496-city dataset.
- Rain or snow reaches the ground on 42 days a year - fewer wet days than all but 7% of the 3496 cities we track.
- Relative humidity averages 51% - drier than all but 7% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 58° | 40° | 8 | 3.0 in | 7.4 h/day | 79% |
| February | 63° | 41° | 7 | 2.4 in | 9.1 h/day | 70% |
| March | 67° | 46° | 8 | 3.3 in | 9.9 h/day | 66% |
| April | 76° | 51° | 4 | 1.1 in | 11.6 h/day | 53% |
| May | 85° | 58° | 2 | 0.6 in | 13.2 h/day | 42% |
| June | 96° | 67° | 0 | 0.0 in | 13.7 h/day | 31% |
| July | 103° | 73° | 0 | 0.0 in | 13.9 h/day | 27% |
| August | 101° | 72° | 0 | 0.1 in | 12.9 h/day | 31% |
| September | 94° | 65° | 0 | 0.1 in | 11.7 h/day | 35% |
| October | 82° | 55° | 1 | 0.4 in | 10.5 h/day | 43% |
| November | 67° | 44° | 4 | 1.5 in | 8.9 h/day | 63% |
| December | 57° | 40° | 6 | 2.7 in | 7.1 h/day | 77% |
Fresno month by month
Fresno weather in January
January brings highs around 58°F (15°C), lows near 40°F (4°C), about 8 wet days.
Fresno weather in February
February brings highs around 63°F (17°C), lows near 41°F (5°C), about 7 wet days.
Fresno weather in March
March brings highs around 67°F (20°C), lows near 46°F (8°C), about 8 wet days - typically the wettest month of the year in Fresno.
Fresno weather in April
April brings highs around 76°F (25°C), lows near 51°F (11°C), about 4 wet days.
Fresno weather in May
May brings highs around 85°F (29°C), lows near 58°F (15°C), about 2 wet days.
Fresno weather in June
June brings highs around 96°F (36°C), lows near 67°F (20°C), about 0 wet days.
Fresno weather in July
July brings highs around 103°F (40°C), lows near 73°F (23°C), about 0 wet days - typically the hottest month and the driest month and the sunniest month of the year in Fresno.
Fresno weather in August
August brings highs around 101°F (38°C), lows near 72°F (22°C), about 0 wet days.
Fresno weather in September
September brings highs around 94°F (34°C), lows near 65°F (19°C), about 0 wet days.
Fresno weather in October
October brings highs around 82°F (28°C), lows near 55°F (13°C), about 1 wet days.
Fresno weather in November
November brings highs around 67°F (19°C), lows near 44°F (7°C), about 4 wet days.
Fresno weather in December
December brings highs around 57°F (14°C), lows near 40°F (4°C), about 6 wet days - typically the coldest month of the year in Fresno.
Seasons in Fresno
Spring (March through May)
Spring in Fresno settles into easy warmth, with daytime highs averaging 76°F (24°C) and nights around 52°F (11°C); rain comes on about 14 days over the three months. Daylight is generous - around 11.6 hours of sun a day.
Summer (June through August)
Through summer, Fresno brings serious heat: 100°F (38°C) by day, 71°F (21°C) after dark, and precipitation is essentially absent. Daylight is generous - around 13.5 hours of sun a day.
Fall (September through November)
Fall runs hot here - highs near 81°F (27°C), nights near 55°F (13°C), and precipitation is sparse, near 2.1 inches (52 mm) for the season. Daylight is generous - around 10.4 hours of sun a day.
Winter (December through February)
Through winter, Fresno is mild: 60°F (15°C) by day, 40°F (5°C) after dark, and expect showers on roughly 21 days across the season.
Climate questions, answered
Are nights cold in Fresno?
How long does summer last in Fresno?
What is the average temperature in Fresno?
How cold does Fresno get in winter?
Is Fresno a wet city?
Best time to visit Fresno
Aim for October to November and February if you get the choice: temperatures sit either side of the peak heat rather than in it, and highs average 72°F (22°C) against roughly 4 wet days a month. For the same question asked the other way round, see where else is warm in October.
Pack for Fresno with lightweight, breathable clothing and serious sun protection and a warm jacket and layers for the cooler season. Even in July, lows of 73°F (23°C) make an extra layer worth the space.
Fresno temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ.