Cape Newenham Arpt climate by month
Averages and records for each calendar month at Cape Newenham Arpt, United States, from 1953 to 2026. The warmest month is August, averaging 11.9°C; the coolest is December at −4.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −3.7°C | −9.1°C | 10.0°C28 January 1963 | −30.0°C6 January 1954 | 13 / 14 |
| February | −4.6°C | −10.6°C | 10.0°C20 February 1957 | −31.7°C26 February 1954 | 12 / 14 |
| March | −4.1°C | −9.6°C | 6.7°C31 March 1957 | −29.4°C16 March 1966 | 13 / 15 |
| April | 0.2°C | −4.6°C | 7.8°C22 April 1956 | −21.1°C5 April 1956 | 13 / 15 |
| May | 4.8°C | 0.7°C | 16.7°C25 May 1969 | −8.3°C3 May 1965 | 14 / 17 |
| June | 9.1°C | 4.7°C | 18.9°C20 June 1962 | −1.7°C9 June 1956 | 12 / 17 |
| July | 11.6°C | 7.4°C | 23.9°C13 July 1960 | 2.8°C3 July 1955 | 13 / 15 |
| August | 11.9°C | 8.5°C | 19.4°C1 August 2025 | 3.9°C25 August 1955 | 10 / 13 |
| September | 9.2°C | 6.0°C | 18.9°C5 September 1963 | −2.2°C28 September 1970 | 10 / 17 |
| October | 3.7°C | 0.4°C | 11.7°C7 October 1959 | −12.8°C28 October 1966 | 15 / 15 |
| November | −0.3°C | −4.6°C | 10.0°C26 November 1970 | −22.8°C16 November 1956 | 12 / 15 |
| December | −4.7°C | −10.4°C | 7.8°C3 December 2025 | −28.3°C26 December 1954 | 13 / 15 |
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 10 to 15 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.