Fairfax climate

Fairfax Weather in June

NOAA 1991-2020 normals for Ralston, 8.5 km from Fairfax

Average highs run from 85°F on June 1 to 92°F on June 30, and lows from 63°F to 70°F. Normal precipitation for the month is 4.50 in over about 6 wet days.

June day by day

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

Normal daily high and low temperature at Fairfax, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

June at a glance

Average high
89°F
Average low
67°F
Precipitation
4.50 in
Record high
110°FJun 15, 1953
Record low
44°FJun 2, 1969
Chance of a freeze
0%
Days of 90°F or more
13.0
Daylight
14 h 30 min to 14 h 37 min
Cloud cover
50%
Humidity
74%
Dew point
67°F
Wind
10.1 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
Jun 185°F63°F97°F 195345°F 198325%0%
Jun 285°F63°F97°F 195344°F 196925%0%
Jun 385°F64°F99°F 195350°F 195425%0%
Jun 485°F64°F98°F 201145°F 195425%0%
Jun 586°F64°F99°F 195850°F 199325%0%
Jun 686°F65°F101°F 201149°F 199825%0%
Jun 786°F65°F99°F 201148°F 198324%0%
Jun 887°F65°F106°F 198852°F 197824%0%
Jun 987°F65°F107°F 198854°F 196624%0%
Jun 1087°F66°F103°F 200650°F 196624%0%
Jun 1188°F66°F101°F 195348°F 195524%0%
Jun 1288°F66°F104°F 195352°F 199523%0%
Jun 1388°F66°F105°F 195350°F 198523%0%
Jun 1488°F67°F103°F 195354°F 196923%0%
Jun 1589°F67°F110°F 195350°F 196923%0%
Jun 1689°F67°F100°F 197050°F 198123%0%
Jun 1789°F67°F102°F 194854°F 199922%0%
Jun 1889°F68°F103°F 195353°F 200022%0%
Jun 1990°F68°F102°F 195351°F 197622%0%
Jun 2090°F68°F102°F 195350°F 197621%0%
Jun 2190°F68°F103°F 195350°F 196121%0%
Jun 2290°F69°F101°F 195654°F 197021%0%
Jun 2391°F69°F101°F 202455°F 195820%0%
Jun 2491°F69°F104°F 195455°F 195720%0%
Jun 2591°F69°F107°F 201253°F 195820%0%
Jun 2691°F69°F108°F 201250°F 195820%0%
Jun 2792°F69°F104°F 195647°F 196819%0%
Jun 2892°F70°F105°F 201256°F 198519%0%
Jun 2992°F70°F104°F 195261°F 200819%0%
Jun 3092°F70°F105°F 195659°F 201319%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Fairfax, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

June 1
sunrise 6:10 AM, sunset 8:40 PM
June 30
sunrise 6:12 AM, sunset 8:49 PM

Every day of June: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00347390 (Ralston), public domain. Records: NOAA GHCN-Daily, station USW00013969, 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.