Central Square - Cambridge, Massachusetts
42° 21.82' N - 071° 06.48' W - 20 feet
Tuesday May 18 21:25:00 2021

Monthly Summary: 
Yearly Summary: 

Today Week Month Year All
High Temperature: 82.5
13:48
82.5
Tuesday
82.5
05/18/2021
82.5
05/18/2021
103.6
07/22/2011
°F
Low Temperature: 57.1
05:45
45.9
Wednesday
41.9
05/01/2021
8.1
01/31/2021
-8.6
02/14/2016
°F
High Humidity: 70
06:56
75
Tuesday
94
05/04/2021
96
04/30/2021
100
05/17/2011
%
Low Humidity: 26
16:31
21
Friday
21
05/14/2021
15
03/12/2021
8
03/30/2007
%
High Dewpoint: 51.0
09:19
54.7
Sunday
54.7
05/16/2021
62.1
03/26/2021
90.5
07/01/2009
°F
Low Dewpoint: 43.1
12:20
23.8
Tuesday
23.8
05/11/2021
-8.1
03/02/2021
-27.8
02/14/2016
°F
High Barometer: 30.217
00:06
30.241
Monday
30.241
05/17/2021
30.550
03/10/2021
31.100
01/04/2015
inHg
Low Barometer: 30.072
17:12
29.852
Tuesday
29.427
05/01/2021
29.186
04/30/2021
28.625
02/07/2020
inHg
High Heat Index: 80.6
13:47
80.6
Tuesday
80.6
05/18/2021
80.6
05/18/2021
113.7
07/20/2019
°F
Low Wind Chill: 57.1
05:45
43.0
Wednesday
35.0
05/01/2021
-13.3
01/29/2021
-26.5
01/07/2018
°F
High Wind Speed: 18
14:44
24
Tuesday
25
05/07/2021
40
03/02/2021
88
04/13/2020
mph
Ave Wind Speed: 2 2 3 4 3 mph
High Rain Rate: 0.00
00:00
0.00
Tuesday
0.44
05/05/2021
655.35
04/23/2021
655.35
04/23/2021
in/hr
Rain Total: 0.00
0.01
1.15 9.75 534.15 in
High UV Index: 4.9
12:30
5.9
Thursday
6.9
05/10/2021
6.9
05/10/2021
14.0
07/03/2013
High Solar Radiation: 1007
13:19
1190
Thursday
1190
05/13/2021
1190
05/13/2021
2483
07/25/2015
W/m²
High Particulate:
Matter (PM2.5):
10.22
20:49
250.08
Saturday
1132.94
05/02/2021
1132.94
05/02/2021
2946.97
04/08/2020
µg/m³