Temperature Data | Precipitation Data | Detailed Data

Annual Climatology: Boston, MA (BOS)

Elev: 6.1 m    Lat: 42o 22'N    Long: 71o 01'W

Boston Metric Units

Figure 1: Average Temperatures and Precipitation 1971-2000. (NCDC Data)

 

 


Temperature Data (oC) :

Month

Daily Max

Daily Min

Mean

Maximum Daily Temperature

Minimum Daily Temperature

January

2.5

-5.5

-1.5

22.2

-24.4

February

3.7

-4.3

-0.3

21.1

-27.8

March

7.9

-0.3

3.8

31.7

-17.2

April

13.4

4.7

9.1

34.4

-10.6

May

19.3

10.1

14.7

35.6

1.1

June

25.3

15.2

20.0

37.8

5.0

July

27.9

18.6

23.3

39.4

10.0

August

26.7

18.1

22.4

38.9

7.8

September

22.5

13.8

18.2

37.8

2.8

October

16.6

8.0

12.3

32.2

-3.9

November

11.0

3.3

7.2

28.3

-13.3

December

5.4

-2.3

1.6

24.4

-27.2

Annual

15.2

6.6

10.9

39.4

-27.8

 

Precipitation Data (mm):

Month

Mean

Median

Extreme

Year

Snow*

January

99.6

84.6

268.0

1979

337.8

February

83.8

73.9

198.4

1984

287.0

March

97.8

88.1

246.9

1983

203.2

April

91.4

87.4

240.3

1987

27.9

May

82.3

72.9

222.8

1984

0.0

June

81.8

55.9

335.3

1982

0.0

July

77.7

65.3

193.5

1988

0.0

August

85.6

75.4

202.9

1976

0.0

September

88.1

76.7

250.4

1999

0.0

October

96.3

85.1

270.8

1996

0.0

November

101.1

96.0

225.8

1983

35.6

December

94.7

83.3

209.8

1992

170.2

Annual

1080.3

1104.1

 

 

1061.7

* Snowfall totals represent mean snowfall 1971-2000


 
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