Weather on July 30

Cambridge, MA

55 Years of Data

Avg High
83°F
Avg Low
63°F
Warmest
2025
86°F avg
Coldest
1984
53°F avg

About This Date

July 30th in Cambridge, MA typically brings warm summer weather, with average highs around 83°F and lows near 63°F. Over 55 years of records, the warmest July 30th was in 2025 (86°F average), while the coldest was 1984 (53°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 38% of July 30th dates historically, with the wettest July 30th recording 8.61" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.

The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.

Planning for July 30th in Cambridge, MA? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.

Warming Trend
1.2°F per decade on this date
YearHighLowAvgPrecipSnow
2025warmest100°71°86°
202474°65°69°0.13"
202392°59°75°8.61"
202293°72°82°0.13"
202180°64°72°0.13"
202094°73°83°
201993°71°82°0.05"
201884°61°72°
201772°56°64°
201685°68°76°0.18"
201595°70°82°
201479°57°68°
201383°64°73°0.05"
201270°58°64°
201181°65°73°0.66"
201088°60°74°0.3"
200984°74°79°
200885°64°74°
200776°67°71°4.37"
200684°66°75°
200576°64°70°
200486°68°77°
200382°65°73°
200291°70°80°
200180°56°68°
200080°64°72°
199987°70°78°
199888°62°75°0.79"
199778°58°68°
199682°57°70°
199590°70°80°
199488°69°78°
199382°64°73°0.05"
199285°68°76°
199176°63°69°
199080°64°72°
198981°59°70°0.15"
198890°
198780°54°67°
198679°64°71°2.39"
198585°67°76°
1984coldest64°42°53°
198390°72°81°
198280°57°69°
198174°55°64°0.84"
198072°64°68°6.25"
197988°70°79°
197855°0.03"
197782°60°71°
197676°64°70°1.4"
197578°56°67°
197481°62°71°
197384°60°72°3.61"
197279°56°67°0.48"
197184°68°76°0.36"
55 years of data from CHESTNUT HILL

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

July 30th Weather in Cambridge, MA - 55 Years of History