Lone Rock/Tri Cnty Rgnl climate by month
Averages and records for each calendar month at Lone Rock/Tri Cnty Rgnl, United States, from 1948 to 2026. The warmest month is July, averaging 28.7°C; the coolest is January at −3.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −3.1°C | −14.1°C | 15.0°C30 January 2025 | −47.2°C30 January 1951 | 61 / 61 |
| February | −0.4°C | −12.3°C | 22.8°C27 February 2024 | −41.1°C2 February 1951 | 60 / 60 |
| March | 6.4°C | −5.1°C | 28.3°C17 March 2012 | −39.4°C1 March 1962 | 60 / 60 |
| April | 14.7°C | 1.6°C | 36.1°C23 April 1980 | −19.4°C7 April 1982 | 59 / 60 |
| May | 21.6°C | 7.8°C | 36.1°C27 May 2018 | −6.1°C3 May 2005 | 60 / 60 |
| June | 26.6°C | 13.3°C | 37.2°C7 June 2011 | 1.1°C11 June 1972 | 60 / 61 |
| July | 28.7°C | 15.4°C | 38.9°C4 July 2012 | 4.4°C15 July 1967 | 60 / 61 |
| August | 27.4°C | 14.2°C | 38.3°C24 August 1948 | 2.8°C20 August 1950 | 61 / 61 |
| September | 23.3°C | 9.4°C | 37.8°C9 September 1955 | −6.7°C29 September 1949 | 60 / 61 |
| October | 16.6°C | 3.2°C | 34.4°C6 October 1963 | −13.3°C29 October 1952 | 61 / 61 |
| November | 7.7°C | −3.2°C | 25.6°C3 November 1964 | −27.8°C26 November 1977 | 60 / 61 |
| December | 0.0°C | −10.1°C | 20.6°C15 December 2021 | −37.8°C27 December 1950 | 61 / 61 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 59 to 61 years each.
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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.