Brighton climate

Brighton Weather in May

NOAA 1991-2020 normals for Washington, 15.2 km from Brighton

Average highs run from 67°F on May 1 to 77°F on May 31, and lows from 44°F to 56°F. Normal precipitation for the month is 5.11 in over about 13 wet days.

May day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Brighton, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
72°F
Average low
50°F
Precipitation
5.11 in
Record high
103°FMay 31, 1934
Record low
23°FMay 3, 2005
Chance of a freeze
38%
Days of 90°F or more
0.6
Daylight
14 h 00 min to 14 h 56 min
Cloud cover
65%
Humidity
75%
Dew point
53°F
Wind
10.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
May 167°F44°F91°F 195227°F 190338%1%
May 268°F44°F89°F 190128°F 190838%1%
May 368°F44°F91°F 192823°F 200538%1%
May 468°F45°F91°F 195224°F 190739%1%
May 569°F45°F92°F 190928°F 200539%1%
May 669°F46°F97°F 193431°F 190639%0%
May 769°F46°F89°F 189626°F 193139%0%
May 870°F47°F90°F 193435°F 192339%0%
May 970°F47°F92°F 196326°F 202039%0%
May 1070°F47°F89°F 189527°F 196639%0%
May 1171°F48°F91°F 201131°F 190740%0%
May 1271°F48°F94°F 195631°F 202040%0%
May 1371°F49°F94°F 191534°F 190140%0%
May 1472°F49°F90°F 193230°F 189540%0%
May 1572°F49°F92°F 194135°F 200440%0%
May 1672°F50°F91°F 193633°F 190740%0%
May 1773°F50°F91°F 199634°F 201140%0%
May 1873°F51°F93°F 193434°F 191641%0%
May 1973°F51°F93°F 193434°F 189441%0%
May 2074°F51°F93°F 193434°F 189441%0%
May 2174°F52°F95°F 193433°F 200241%0%
May 2274°F52°F95°F 192533°F 196341%0%
May 2375°F53°F94°F 193934°F 191041%0%
May 2475°F53°F94°F 192637°F 189741%0%
May 2575°F53°F93°F 191133°F 192541%0%
May 2676°F54°F95°F 192637°F 190141%0%
May 2776°F54°F91°F 191135°F 190741%0%
May 2876°F55°F96°F 201838°F 192841%0%
May 2977°F55°F100°F 193434°F 194741%0%
May 3077°F55°F98°F 193437°F 190141%0%
May 3177°F56°F103°F 193434°F 189741%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Brighton, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:05 AM, sunset 8:05 PM
May 31
sunrise 5:37 AM, sunset 8:33 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00138688 (Washington), public domain. Records: NOAA GHCN-Daily, station USC00138688, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.