Climateby Month

Tulsa, OK weather in May

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

Tulsa is warm in May, with frequent rain: highs average 80°F and nights drop to about 60°F. Rain falls on about 11 days. A good month for most outdoor plans.

Normal high
80°F
Normal low
60°F
Wet days
11
5.7 in total
Muggy days
8
dew point 65°F+

How May changes from start to finish

Normal values at the start and end of May
May 1May 31
Normal high76°F84°F
Normal low54°F65°F
Chance of a wet day35%35%
Sunrise / sunset6:31 am / 8:11 pm6:08 am / 8:34 pm
Daylight13.7 h14.4 h

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

A typical May day

  1. 6 am62°Fdew point 57°F
  2. 9 am69°Fdew point 58°F
  3. Noon75°Fdew point 59°F
  4. 3 pm78°Fdew point 59°F
  5. 6 pm76°Fdew point 59°F
  6. 9 pm70°Fdew point 59°F

NOAA hourly normals (local standard time) from Tulsa Intl Airport (7 mi away); average wind 10 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F10 of 31
  • Hot dayshigh 90°F or more3 of 31
  • Muggy daysdaily mean dew point 65°F or more8 of 31
  • Wet daysat least 0.01 in of rain or melted snow11 of 31
  • Notable rainat least 0.10 in7 of 31
  • Freezing nightslow 32°F or below0 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

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

Rain in May

Normal precipitation is 5.7 in; a dry May brings about 3.2 in and a wet one about 7.0 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 2 an inch or more.

How May varies from year to year

  • Warmest May, 1991-20202018: average high 87°F
  • Coolest May1995: average high 74°F
  • Wettest May2015: 14.8 in
  • Driest May2012: 1.2 in
  • Highest reading97°F (May 25, 2006)
  • Lowest reading35°F (May 3, 2005)

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 high72°F80°F88°F
Normal low50°F60°F69°F
Wet days9119
Comfortable days16101
Daylight13.1 h14.1 h14.6 h

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

Nearby alternatives in May

How Tulsa ranks in May

  • Normal high146th warmest of 378 cities; 1st of 2 in Oklahoma
  • Wet days232nd driest of 378
  • Comfortable days218th most of 339

What to pack for Tulsa in May

  • A rain jacket or umbrella – rain on about 11 days
  • Sunglasses and sunscreen – about 14.1 hours of daylight and highs near 80°F

Heating and cooling

May has 41 heating degree days and 183 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.

Questions

How hot is Tulsa in May?

The normal high is 80°F and the normal low is 60°F. From 1991 to 2020 the hottest May reading was 97°F (May 25, 2006).

Does it rain a lot in Tulsa in May?

About 11 days in May have at least 0.01 in of precipitation, and the normal total is 5.7 in. The wettest May in 1991-2020 was in 2015 (14.8 in); the driest was in 2012 (1.2 in).

Is May a good time to visit Tulsa?

May ranks 4th of 12 months on our comfort score for Tulsa (62 out of 100). It has about 10 comfortable days and about 3 days at 90°F or hotter. The best month is April.

Where the numbers come from

  • Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Tulsa Intl Airport (USW00013968), 6.7 mi ENE of the city center, 650 ft (72 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Tulsa International Airport (723560-13968), 7.1 mi ENE of the city center, 639 ft (83 ft lower than the city). Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).