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2013 Annual Climate Summary

Despite high seasonal variability, the 2013 state averaged annual mean temperature and total precipitation were within the expected range of inter-annual variability for the 1895-2013 period of record. The 2013 mean annual temperature (44.7 °F) was 0.5 °F above the 1981-2010 average (44.2 ±1.1 °F), or normal, and 1.3 °F warmer than the 1895-2013 average (43.4 ±1.4 °F). It was, on average, 2.4 °F cooler than 2012 (47.1 °F), which ranks as the warmest year on record, but was 5.2 °F greater than the record coldest year set in 1926 (39.5 °F). Last year ranked as the 17th warmest since 1895 and is the fourth consecutive year to rank within the top 20 warmest years on record. Above normal summer rainfall balanced below normal precipitation for the rest of 2013 resulting in a near normal total annual precipitation. The 2013 sum of 44.49 inches falls below the 1981-2010 normal (45.52 ±7.11 inches) but above the 1895-2013 average (43.23 ±5.90 inches). Ranked as the 41st wettest year since 1895, 2013 is the 9th consecutive year in which total annual precipitation was above average. Over the past two decades, the state has been above normal for mean annual temperatures 15 times and for total annual precipitation 14 times.

Monthly mean temperature and total precipitation departures for New Hampshire, 2013: NOAA/NCDC Climate at a Glance.


94th AMS Annual Meeting

Atlanta, GA

February 2-6, 2014