Updated October 2026
Saugus Iron Works National Historic Site Weather by Month
Saugus Iron Works National Historic Site is warmest in July, when the nearest NOAA climate station averages a high of 84°F and a low of 63°F, and coldest in January, with an average high of 38°F and an average low of 19°F. December is the wettest month, with about 5 inches of precipitation. Snowfall is heaviest in January, at about 17 inches.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 7.1 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Saugus Iron Works National Historic Site can differ from these, particularly with elevation.
Warmest month
Jul
84°F avg high
Coldest month
Jan
19°F avg low
Wettest month
Dec
5.0 in avg
Snowiest month
Jan
17.2 in avg
Longest days
Jun
15.1 h of daylight
Average weather at Saugus Iron Works by month
| Month | Avg high | Avg low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 38°F | 19°F | 3.9 in | 17.2 in | 9.2 h |
| February | 40°F | 20°F | 3.6 in | 16.2 in | 10.3 h |
| March | 48°F | 27°F | 4.9 in | 13.3 in | 11.7 h |
| April | 60°F | 37°F | 4.3 in | 2.2 in | 13.2 h |
| May | 70°F | 47°F | 3.8 in | 0.0 in | 14.4 h |
| June | 78°F | 56°F | 4.2 in | 0.0 in | 15.1 h |
| July | 84°F | 63°F | 4.0 in | 0.0 in | 14.8 h |
| August | 82°F | 61°F | 3.5 in | 0.0 in | 13.7 h |
| September | 75°F | 53°F | 3.9 in | 0.0 in | 12.3 h |
| October | 64°F | 42°F | 4.8 in | 0.1 in | 10.8 h |
| November | 53°F | 32°F | 4.0 in | 1.7 in | 9.5 h |
| December | 43°F | 24°F | 5.0 in | 12.8 in | 8.9 h |
| Year total | 49.9 in | 63.5 in |
NOAA 1991–2020 climate normals from station USC00196783, 7.1 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Saugus Iron Works is at that time of year.
Saugus Iron Works weather by season
Winter: December to February
Average highs bottom out at 38°F in January, between 43°F in December and 40°F in February, with average lows between 19°F and 24°F. The average low is at or below freezing in all three months. Together the three months average 12.5 inches of precipitation, about 25% of the yearly total. Snowfall averages about 46 inches for the season. Daylight is at its shortest, about 8.9 hours in December.
Spring: March to May
Average highs climb from 48°F in March to 70°F in May, with average lows between 27°F and 47°F. The average low is at or below freezing in March. Together the three months average 13 inches of precipitation, about 26% of the yearly total and more than in any other season. Snowfall averages about 16 inches for the season, most of it in March. Daylight lengthens from about 11.7 hours in March to 14.4 in May.
Summer: June to August
Average highs peak at 84°F in July, between 78°F in June and 82°F in August, with average lows between 56°F and 63°F. Together the three months average 11.7 inches of precipitation, about 23% of the yearly total and less than in any other season. Daylight is at its longest, about 15.1 hours in June.
Fall: September to November
Average highs fall from 75°F in September to 53°F in November, with average lows between 32°F and 53°F. The average low is at or below freezing in November. Together the three months average 12.7 inches of precipitation, about 25% of the yearly total. Snowfall averages about 1.8 inches for the season, most of it in November. Daylight shortens from about 12.3 hours in September to 9.5 in November.
What the National Park Service says about the weather
New England weather is unpredictable year-round. Monthly averages, in degrees Fahrenheit, are: January: 37 high, 20 low February: 40 high, 23 low March: 47 high, 30 low April: 57 high, 38 low May: 67 high, 48 low June: 76 high, 58 low July: 82 high, 63 low August: 80 high, 62 low September: 73 high, 55 low October: 62 high, 45 low November: 52 high, 37 low December: 42 high, 27 low
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Saugus Iron Works
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 42.47°N, 71.01°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Saugus Iron Works National Historic Site →
Weather and crowds together
July, the warmest month, sees about 1.4× the visitors of the park's average month. August is the busiest month of the year and January the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Saugus Iron Works National Historic Site. For hotels, cabins and rentals close to the park, see where to stay near Saugus Iron Works.
Where to stay near Saugus Iron Works
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Frequently Asked Questions
July is the warmest month at Saugus Iron Works National Historic Site, with an average high of 84°F and an average low of 63°F. That is the 1991–2020 average at the nearest long-record NOAA station, 7.1 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Saugus Iron Works National Historic Site, with an average low of 19°F and an average high of 38°F, based on NOAA 1991–2020 climate normals.
December is the wettest month, with about 5 inches of precipitation. August is the driest, at about 3.5 inches. The station records about 49.9 inches of precipitation in an average year.
Yes. The nearest long-record NOAA station, 7.1 miles from the park's reference point, averages about 64 inches of snow a year. January is the snowiest month, at about 17 inches. The station averages at least a tenth of an inch of snow in 7 of the 12 months.
Weather at nearby parks
7 mi away · warmest in July (82°F)
7 mi away · warmest in July (80°F)
8 mi away · warmest in July (82°F)
9 mi away · warmest in July (85°F)
10 mi away · warmest in July (85°F)
12 mi away · warmest in July (85°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00196783), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.