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 | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 58° | 40° | 8 | 3.0 in | 7.4 h/day | 9.9 h | 27% | 79% |
| February | 63° | 41° | 7 | 2.4 in | 9.1 h/day | 10.8 h | 23% | 70% |
| March | 67° | 46° | 8 | 3.3 in | 9.9 h/day | 11.9 h | 26% | 66% |
| April | 76° | 51° | 4 | 1.1 in | 11.6 h/day | 13.1 h | 12% | 53% |
| May | 85° | 58° | 2 | 0.6 in | 13.2 h/day | 14.1 h | 7% | 42% |
| June | 96° | 67° | 0 | 0.0 in | 13.7 h/day | 14.7 h | 1% | 31% |
| July | 103° | 73° | 0 | 0.0 in | 13.9 h/day | 14.4 h | 0% | 27% |
| August | 101° | 72° | 0 | 0.1 in | 12.9 h/day | 13.6 h | 1% | 31% |
| September | 94° | 65° | 0 | 0.1 in | 11.7 h/day | 12.4 h | 2% | 35% |
| October | 82° | 55° | 1 | 0.4 in | 10.5 h/day | 11.2 h | 4% | 43% |
| November | 67° | 44° | 4 | 1.5 in | 8.9 h/day | 10.1 h | 14% | 63% |
| December | 57° | 40° | 6 | 2.7 in | 7.1 h/day | 9.7 h | 21% | 77% |
Fresno month by month
Average high and low for each month, with the bar showing where it sits in Fresno's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 8 days
- Sunshine
- 7.4 h
- Daylight
- 9.9 h
February
- Rain
- 7 days
- Sunshine
- 9.1 h
- Daylight
- 10.8 h
March
- Rain
- 8 days
- Sunshine
- 9.9 h
- Daylight
- 11.9 h
April
- Rain
- 4 days
- Sunshine
- 11.6 h
- Daylight
- 13.1 h
May
- Rain
- 2 days
- Sunshine
- 13.2 h
- Daylight
- 14.1 h
June
- Rain
- 0 days
- Sunshine
- 13.7 h
- Daylight
- 14.7 h
July
- Rain
- 0 days
- Sunshine
- 13.9 h
- Daylight
- 14.4 h
August
- Rain
- 0 days
- Sunshine
- 12.9 h
- Daylight
- 13.6 h
September
- Rain
- 0 days
- Sunshine
- 11.7 h
- Daylight
- 12.4 h
October
- Rain
- 1 day
- Sunshine
- 10.5 h
- Daylight
- 11.2 h
November
- Rain
- 4 days
- Sunshine
- 8.9 h
- Daylight
- 10.1 h
December
- Rain
- 6 days
- Sunshine
- 7.1 h
- Daylight
- 9.7 h
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
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. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.