Aquadilla/Hernández Arpt climate by month
Averages and records for each calendar month at Aquadilla/Hernández Arpt, Puerto Rico, from 1942 to 2026. The warmest month is August, averaging 30.9°C; the coolest is February at 27.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 27.8°C | 20.1°C | 34.4°C22 January 1977 | 15.0°C10 January 1979 | 67 / 69 |
| February | 27.7°C | 19.9°C | 32.8°C8 February 1998 | 15.6°C17 February 1977 | 60 / 65 |
| March | 28.4°C | 20.3°C | 35.0°C22 March 2010 | 13.9°C12 March 1982 | 67 / 69 |
| April | 28.9°C | 21.3°C | 35.0°C25 April 1984 | 16.1°C5 April 1985 | 66 / 69 |
| May | 29.6°C | 22.3°C | 35.0°C20 May 1980 | 15.6°C3 May 1976 | 61 / 66 |
| June | 30.4°C | 23.0°C | 35.6°C14 June 1993 | 16.1°C17 June 1984 | 60 / 64 |
| July | 30.7°C | 23.3°C | 35.6°C3 July 2012 | 17.8°C26 July 2010 | 62 / 65 |
| August | 30.9°C | 23.3°C | 36.0°C6 August 2025 | 17.2°C1 August 1999 | 62 / 67 |
| September | 30.8°C | 23.2°C | 35.6°C22 September 1987 | 17.8°C26 September 1977 | 57 / 63 |
| October | 30.3°C | 22.8°C | 36.1°C17 October 1984 | 16.7°C24 October 1991 | 58 / 65 |
| November | 29.3°C | 22.1°C | 36.1°C19 November 1987 | 16.7°C26 November 1979 | 56 / 62 |
| December | 28.3°C | 21.0°C | 32.8°C14 December 1987 | 15.6°C13 December 1976 | 58 / 63 |
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 56 to 67 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.