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Hartville town, Wyoming

Official LSAD Designation: Hartville town • Census GEOID: 5635625 • Platte County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Hartville town.

Reference Weather Station: GUERNSEY DAM #2, WY US (ID: USC00484126) • Located 3.2 miles from community center • Elevation: 1,327.4 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 39.0° 13.8° 26.4° 0.37"
February 42.7° 16.1° 29.4° 0.51"
March 52.2° 24.9° 38.6° 0.95"
April 59.4° 31.7° 45.6° 2.03"
May 69.0° 42.5° 55.8° 3.05"
June 80.0° 53.4° 66.7° 2.11"
July 89.4° 59.4° 74.4° 1.74"
August 87.2° 57.4° 72.3° 1.22"
September 78.4° 47.4° 62.9° 1.27"
October 62.8° 33.1° 47.9° 1.46"
November 49.7° 23.5° 36.6° 0.44"
December 39.9° 13.4° 26.7° 0.90"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station GUERNSEY DAM #2, WY US (ID: USC00484126) • 3.2 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at GUERNSEY DAM #2, WY US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 30.0 39.8 49.5 59.3 69.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2019: Annual mean 46.6°F 2020: Annual mean 50.1°F 2021: Annual mean 49.8°F 2022: Annual mean 49.0°F 2025: Annual mean 51.0°F 2019: Annual mean of daily highs 59.6°F 2020: Annual mean of daily highs 64.5°F 2021: Annual mean of daily highs 63.4°F 2022: Annual mean of daily highs 63.2°F 2025: Annual mean of daily highs 65.0°F 2019: Annual mean of daily lows 33.6°F 2020: Annual mean of daily lows 35.8°F 2021: Annual mean of daily lows 36.3°F 2022: Annual mean of daily lows 34.8°F 2025: Annual mean of daily lows 37.0°F

Source: NOAA NCEI Global Summary of the Year.

Annual temperature data table (°F)
Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year Annual mean (°F) Annual mean of daily highs (°F) Annual mean of daily lows (°F)
2010 Unavailable Unavailable Unavailable
2011 Unavailable Unavailable Unavailable
2012 Unavailable Unavailable Unavailable
2013 Unavailable Unavailable Unavailable
2014 Unavailable Unavailable Unavailable
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 Unavailable Unavailable Unavailable
2018 Unavailable Unavailable Unavailable
2019 46.6 59.6 33.6
2020 50.1 64.5 35.8
2021 49.8 63.4 36.3
2022 49.0 63.2 34.8
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 51.0 65.0 37.0
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.