Pärnu Arpt climate by month
Averages and records for each calendar month at Pärnu Arpt, Estonia, from 1877 to 2026. The warmest month is July, averaging 22.0°C; the coolest is January at −2.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −2.2°C | −7.6°C | 9.0°C10 January 2007 | −34.8°C15 January 1893 | 109 / 143 |
| February | −2.2°C | −8.2°C | 8.3°C22 February 1990 | −34.3°C10 February 1940 | 109 / 143 |
| March | 1.6°C | −5.4°C | 19.6°C31 March 2024 | −28.5°C15 March 1888 | 109 / 142 |
| April | 8.3°C | 0.4°C | 26.2°C24 April 1995 | −19.5°C1 April 1881 | 109 / 142 |
| May | 15.6°C | 6.1°C | 31.2°C29 May 2007 | −5.3°C1 May 1935 | 109 / 142 |
| June | 19.7°C | 10.6°C | 32.6°C7 June 1988 | −0.1°C3 June 1930 | 109 / 141 |
| July | 22.0°C | 13.5°C | 33.3°C29 July 2018 | 3.4°C11 July 1903 | 108 / 140 |
| August | 20.7°C | 12.7°C | 33.1°C7 August 2023 | 0.0°C31 August 1880 | 107 / 141 |
| September | 15.7°C | 8.6°C | 28.5°C4 September 2024 | −4.7°C26 September 1906 | 105 / 138 |
| October | 9.5°C | 3.9°C | 22.4°C2 October 1981 | −10.9°C27 October 1912 | 106 / 139 |
| November | 3.8°C | −0.5°C | 14.7°C12 November 2022 | −22.2°C29 November 2010 | 107 / 140 |
| December | 0.0°C | −4.7°C | 10.3°C15 December 2006 | −34.5°C31 December 1978 | 107 / 141 |
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 105 to 109 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.