Glen Burnie weather by month
Measured at Annapolis/Naval Academy
Averages and records for each calendar month at Annapolis/Naval Academy, United States, from 1945 to 2026. The warmest month is July, averaging 29.7°C; the coolest is January at 5.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 5.9°C | −1.3°C | 25.0°C26 January 1950 | −14.9°C7 January 2014 | 41 / 42 |
| February | 7.1°C | −0.7°C | 28.3°C21 February 2018 | −16.1°C2 February 1961 | 41 / 41 |
| March | 11.5°C | 3.1°C | 29.4°C16 March 1945 | −9.9°C7 March 2015 | 42 / 42 |
| April | 17.6°C | 8.7°C | 32.8°C21 April 1957 | −4.4°C14 April 1950 | 42 / 42 |
| May | 22.2°C | 14.0°C | 34.4°C29 May 2019 | 2.8°C9 May 2020 | 42 / 42 |
| June | 27.2°C | 19.2°C | 37.8°C29 June 1959 | 9.4°C6 June 1945 | 42 / 42 |
| July | 29.7°C | 22.1°C | 39.4°C7 July 2012 | 15.0°C3 July 1957 | 42 / 42 |
| August | 28.6°C | 21.3°C | 38.9°C31 August 1953 | 13.3°C31 August 1946 | 42 / 42 |
| September | 25.3°C | 18.0°C | 35.6°C4 September 2019 | 6.7°C27 September 1947 | 41 / 42 |
| October | 19.5°C | 11.7°C | 34.4°C2 October 2019 | −1.1°C21 October 1952 | 41 / 42 |
| November | 13.3°C | 5.5°C | 27.2°C5 November 2003 | −7.8°C25 November 1950 | 41 / 42 |
| December | 7.9°C | 0.7°C | 23.9°C1 December 2006 | −13.2°C24 December 2022 | 42 / 42 |
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 41 to 42 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
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.