Riga climate by month
Averages and records for each calendar month at Riga, Latvia, from 1943 to 2004. The warmest month is July, averaging 22.1°C; the coolest is January at −1.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −1.9°C | −7.3°C | 9.4°C3 January 1992 | −33.7°C30 January 1970 | 51 / 62 |
| February | −1.5°C | −7.3°C | 13.5°C24 February 1990 | −34.9°C1 February 1956 | 53 / 62 |
| March | 3.1°C | −4.1°C | 20.5°C30 March 1968 | −23.3°C1 March 1960 | 60 / 62 |
| April | 10.2°C | 1.2°C | 27.9°C24 April 2000 | −11.4°C14 April 1997 | 61 / 62 |
| May | 16.5°C | 6.1°C | 30.4°C29 May 1995 | −5.3°C1 May 1944 | 62 / 62 |
| June | 20.3°C | 10.2°C | 32.5°C7 June 1988 | −1.2°C1 June 1965 | 62 / 62 |
| July | 22.1°C | 12.5°C | 34.1°C31 July 2002 | 4.0°C25 July 1968 | 61 / 62 |
| August | 21.3°C | 12.1°C | 33.6°C1 August 2002 | 0.0°C29 August 1966 | 61 / 62 |
| September | 16.5°C | 8.0°C | 29.4°C1 September 1992 | −4.1°C21 September 1996 | 61 / 62 |
| October | 10.4°C | 4.1°C | 23.4°C4 October 1966 | −8.7°C31 October 1979 | 59 / 62 |
| November | 4.0°C | −0.3°C | 17.2°C1 November 1968 | −18.9°C25 November 1989 | 50 / 62 |
| December | 0.4°C | −4.3°C | 11.5°C5 December 1953 | −31.9°C31 December 1978 | 49 / 62 |
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 49 to 62 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.