Casper weather in June: Casper, Wyoming: normal highs, lows, rain and records for June

Casper in June has a normal high of 80°F and a normal low of 45°F, a daily mean of 63°F, rising from 74°F on the 1st to 85°F by the 30th. Measurable precipitation falls on 9 days in a normal June, 1.34 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 26°C and low of 7°C, 34 mm of precipitation and 0 cm of snow in June.

  • NOAA stationCasper-Natrona County Airport
  • Station IDUSW00024089
  • Location42.90°N 106.46°W
  • Elevation5,338 ft (1,627 m)
  • Population58,823
  1. Jan 35° 15°
  2. Feb 38° 15°
  3. Mar 49° 23°
  4. Apr 56° 28°
  5. May 67° 37°
  6. Jun 80° 45°
  7. Jul 89° 53°
  8. Aug 87° 51°
  9. Sep 76° 42°
  10. Oct 60° 31°
  11. Nov 46° 22°
  12. Dec 35° 15°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Casper in June?

The normal high is 80°F and the normal low 45°F, for a daily mean of 62.5°F. June is 10.5°F warmer than May and 8.5°F cooler than July. June is the 3rd warmest month of the year in Casper and the 3rd wettest. Across the month the normal high rises 11°F, from 74°F on June 1 to 85°F on June 30. From one year to the next June's mean temperature typically moves about 3.1°F either way (NOAA's standard deviation), so roughly two Junes in three average between 59°F and 66°F.

Casper in June, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 33%).

Normal high and low on five days of June, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
June 174°F42°F33%16%
June 877°F44°F32%15%
June 1579°F45°F29%14%
June 2282°F47°F26%12%
June 3085°F49°F24%10%
Every day of June: normal high, low and chance of precipitation (warmest afternoon June 30, coldest night June 1)
Casper: NOAA 1991-2020 daily normals for each day of June
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
June 174°F42°F33%16%15 h 10 min
June 274°F42°F33%16%15 h 10 min
June 375°F43°F33%16%15 h 10 min
June 475°F43°F33%16%15 h 10 min
June 575°F43°F32%16%15 h 10 min
June 676°F43°F32%15%15 h 10 min
June 776°F43°F32%15%15 h 10 min
June 877°F44°F32%15%15 h 10 min
June 977°F44°F31%15%15 h 20 min
June 1077°F44°F31%15%15 h 20 min
June 1178°F44°F31%15%15 h 20 min
June 1278°F45°F30%15%15 h 20 min
June 1379°F45°F30%14%15 h 20 min
June 1479°F45°F29%14%15 h 20 min
June 1579°F45°F29%14%15 h 20 min
June 1680°F45°F29%14%15 h 20 min
June 1780°F46°F28%13%15 h 20 min
June 1881°F46°F28%13%15 h 20 min
June 1981°F46°F27%13%15 h 20 min
June 2082°F46°F27%13%15 h 20 min
June 2182°F47°F27%12%15 h 20 min
June 2282°F47°F26%12%15 h 20 min
June 2383°F47°F26%12%15 h 20 min
June 2483°F47°F26%12%15 h 20 min
June 2584°F48°F25%11%15 h 20 min
June 2684°F48°F25%11%15 h 20 min
June 2784°F48°F25%11%15 h 20 min
June 2885°F49°F24%11%15 h 20 min
June 2985°F49°F24%11%15 h 20 min
June 3085°F49°F24%10%15 h 20 min
Normal high
80°FJune average
Normal low
45°FJune average
Precipitation
1.34 inmonth total
Days with precipitation
90.01 inch or more
Snowfall
0.1 inmonth total
Days at 90°F or more
5
Daylight
15 h 10 min to 15 h 20 minJune 1 to June 30
Days at 70°F or more
26
Days at 80°F or more
16
Sunshine
84%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00024089; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain or snow in Casper in June?

On a given June day the chance of 0.01 inch or more is 29% on average, highest around June 1 (33%). In all, 1.34 in falls on 9 days of a normal June.

In a normal June in Casper, 5 days reach 90°F and snowfall averages 0.1 inches.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024089.

How humid and windy is Casper in June?

At 3 p.m. the normal temperature is 83°F with 20% relative humidity and a dew point of 38°F; at 6 a.m. it is 57°F with 65% humidity. The wind averages 9.4 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.

A normal June day at the station, hour by hour (local standard time)
TimeTemperatureDew pointHumidityWindClear or few clouds
6 a.m.57°F46°F65%5.9 mph85%
9 a.m.71°F45°F39%9.4 mph86%
noon81°F41°F24%10.9 mph83%
3 p.m.83°F38°F20%12.5 mph81%
6 p.m.79°F40°F25%12.6 mph80%
9 p.m.66°F43°F44%9.2 mph77%

Source: NOAA NCEI 1991-2020 hourly normals, station USW00024089. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).

What are the records for June in Casper?

The warmest June temperature on Casper's official record (since 1939) is 102°F, on June 24, 1988; the coldest is 25°F, on June 10, 2019. The wettest June brought 4.69 in (2003); the snowiest, 4.5 inches (1947).

The June mean against the 1991-2020 normal of 62.5°F: 2021 68.3°F (+5.8), 2022 62.4°F (−0.1), 2023 60.1°F (−2.4), 2024 66.3°F (+3.8), 2025 64.3°F (+1.8), 2026 62.9°F (+0.4). 4 of 6 ran warmer than normal.

Casper: June in recent years against the 1991-2020 normal
JuneMeanAgainst normalPrecip.
202168.3°F+5.8°F1.97 in
202262.4°F−0.1°F0.21 in
202360.1°F−2.4°F3.29 in
202466.3°F+3.8°F0.80 in
202564.3°F+1.8°F0.53 in
202662.9°F+0.4°F0.55 in

Source: records: ACIS, NWS threaded record CPRthr; recent months: ACIS, station USW00024089. Records and recent months use complete months only.

How does June in Casper compare across Wyoming?

Across the 71 places PlainClimate covers in Wyoming, June normal highs run from 65°F in Sundance to 84°F in Yoder; Casper's is 80°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places