Climateby Month

Fresno, CA weather in May

NOAA 1991-2020 normals and daily records · Fresno all year

May in Fresno: warm and dry. Highs 83°F, lows 58°F, about 3 days with rain. A good month for most outdoor plans.

Normal high
83°F
Normal low
58°F
Wet days
3
0.4 in total
Muggy days
0
dew point 65°F+

How May changes from start to finish

Normal values at the start and end of May
May 1May 31
Normal high78°F87°F
Normal low54°F61°F
Chance of a wet day11%6%
Sunrise / sunset6:05 am / 7:47 pm5:42 am / 8:11 pm
Daylight13.7 h14.5 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).

A typical May day

  1. 6 am59°Fdew point 48°F
  2. 9 am69°Fdew point 47°F
  3. Noon78°Fdew point 45°F
  4. 3 pm82°Fdew point 43°F
  5. 6 pm80°Fdew point 43°F
  6. 9 pm71°Fdew point 46°F

NOAA hourly normals (local standard time) from Fresno Yosemite Intl Airport (4 mi away); average wind 8 mph; clear or few clouds in 53% of daytime hours, mostly cloudy or overcast in 27%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F10 of 31
  • Hot dayshigh 90°F or more9 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow3 of 31
  • Notable rainat least 0.10 in1 of 31
  • Freezing nightslow 32°F or below0 of 31

Average days per May, counted from daily records for each year 1991-2020.

Rain in May

Normal precipitation is 0.4 in; a dry May brings about 0.05 in and a wet one about 0.4 in (25th and 75th percentiles). Days with half an inch or more are rare.

How May varies from year to year

  • Warmest May, 1991-20202001: average high 93°F
  • Coolest May1998: average high 73°F
  • Wettest May2019: 2.4 in
  • Driest May1992: no measurable precipitation
  • Highest reading106°F (May 28, 2020)
  • Lowest reading43°F (May 11, 2010)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

May compared with April and June

AprilMayJune
Normal high74°F83°F91°F
Normal low51°F58°F64°F
Wet days531
Comfortable days18102
Daylight13.2 h14.1 h14.6 h

Highs change by +9°F from April and +8°F into June.

Nearby alternatives in May

How Fresno ranks in May

  • Normal high102nd warmest of 378 cities; 6th of 60 in California
  • Wet days45th driest of 378
  • Comfortable days213th most of 339

What to pack for Fresno in May

  • Layers – afternoons near 83°F but nights near 58°F
  • Sunglasses and sunscreen – about 14.1 hours of daylight and highs near 83°F

Heating and cooling

May has 32 heating degree days and 191 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.

Questions

How hot is Fresno in May?

The normal high is 83°F and the normal low is 58°F. From 1991 to 2020 the hottest May reading was 106°F (most recently on May 28, 2020).

Does it rain a lot in Fresno in May?

About 3 days in May have at least 0.01 in of precipitation, and the normal total is 0.4 in. The wettest May in 1991-2020 was in 2019 (2.4 in); the driest was in 1992, with no measurable precipitation.

Is May a good time to visit Fresno?

May ranks 5th of 12 months on our comfort score for Fresno (64 out of 100). It has about 10 comfortable days and about 9 days at 90°F or hotter. The best months are March and April.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates, humidity and wind by hour and cloud cover: Fresno Yosemite Intl Airport (USW00093193), 3.7 mi NE of the city center, 333 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Fresno Yosemite International Airport (723890-93193), 3.7 mi NE of the city center, 334 ft . Hourly observations, 1991-2020.