WXSIM: Chelmer Village
Updated: Sunday, 15.09.2019 06:00
 
Today

Partly Cloudy
Partly Cloudy
Tonight

Mostly Cloudy
Mostly Cloudy
Monday

Cloudy
Cloudy
Monday
night
Mostly Cloudy
Mostly Cloudy
Tuesday

Sunny
Sunny
Tuesday
night
Mostly Clear
Mostly Clear
Wednesday

Mostly Cloudy
Mostly Cloudy
Wednesday
night
Fair
Fair
Thursday

Sunny
Sunny
Thursday
night
Partly Cloudy
Partly Cloudy
<2 mm. <2 mm.
High: 27° Low: 16° High: 20° Low: 8° High: 20° Low: 8° High: 18° Low: 8° High: 20° Low: 9°






























 

WU Forecast: Chelmsford

Today
Mostly Sunny
Mostly Sunny
Tonight
Mostly Cloudy
Mostly Cloudy
Tomorrow
Cloudy
Cloudy
Tomorrow night
Partly Cloudy
Partly Cloudy
Tuesday
Sunny
Sunny
Tuesday night
Clear
Clear
Wednesday
Mostly Sunny
Mostly Sunny
Wednesday night
Partly Cloudy
Partly Cloudy
Thursday
Mostly Sunny
Mostly Sunny
25°C14°C19°C9°C19°C7°C19°C8°C21°C

WXSIM Forecast Accuracy

Actual Observed (Act), WxSim Generated (WS) , Weather Underground (WU)

Morning

Updated: 09-14-19 at 6:00 am
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° C High Low High Low High Low High Low
Date WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
09-14-19 23   22 10   10 26   27 15   16 21   23 11   11 21   21 8   7
09-13-19 22 23 24 9 7 11 23   23 11   10 25   27 14   14 22   26 11   13
09-12-19 24 26 27 15 13 15 21 23 23 10 7 9 23   23 10   10 25   27 13   15
09-11-19 21 23 24 13 13 11 24 26 26 12 13 14 21 23 22 9 7 9 22   22 9   9
09-10-19 20 20 22 12 13 11 22 23 23 12 13 10 24 26 26 13 13 13 21 23 22 9 7 9
09-09-19 15 15 15 10 7 11 20 20 20 12 13 10 22 23 23 11 13 10 23 26 24 13 13 14
09-08-19 18 20 20 11 8 10 15 15 16 10 7 11 20 20 21 12 13 11 21 23 21 12 13 10
09-07-19 19 20 19 7 7 9 19 20 20 10 8 10 16 15 16 10 7 11 20 20 20 11 13 12
09-06-19 18 19 19 9 9 9 20 20 20 8 7 7 19 20 21 12 8 11 16 15 18 10 7 11
09-05-19 19 20 22 10 10 11 18 19 19 9 9 9 20 20 20 8 7 9 19 20 21 12 8 11
09-04-19 21 22 21 11 12 11 19 20 19 10 10 10 18 19 19 10 9 9 19 20 20 8 7 8
09-03-19 22 24 26 15 15 15 20 22 22 11 12 10 19 20 20 11 10 10 20 19 19 10 9 9
09-02-19 22 24 23 13 14 12 23 24 23 15 15 15 21 22 21 11 12 10 19 20 20 11 10 12
09-01-19 20 22 22 8 7 10 22 24 23 13 14 11 23 24 24 15 15 14 21 22 20 10 12 8
Results WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
# Succ 13 13 11 10 12 12 10 8 11 11 9 8 9 9 8 6
% Succ 100.0   100.0 84.6   76.9 100.0   100.0 83.3   66.7 100.0   100.0 81.8   72.7 90.0   90.0 80.0   60.0
Ave Error 1.3   0.9 1.1   1.9 1.1   0.3 1.2   1.7 1.0   0.5 1.5   1.7 1.3   1.1 1.7   2.1
Net Error -1.3   0.5 0.6   0.8 -1.1   -0.2 0.3   -0.2 -0.8   0.1 0.7   0.3 -0.9   -0.3 0.7   0.5
Std Dev 0.8   0.7 1.1   1.3 0.8   0.4 1.0   1.4 0.8   0.5 1.3   1.5 1.1   1.1 1.5   1.6

Afternoon

Updated: 09-14-19 at 6:00 pm
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° C Low High Low High Low High Low High
Date WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
09-14-19 10   11 26   28 15   16 21   21 9   9 20   20 8   7 20   20
09-13-19 9 7 10 23 24 24 10   10 26   28 15   15 23   25 12   14 21   21
09-12-19 14 13 14 21 23 23 9 7 10 23 24 22 11   10 25   27 13   16 22   21
09-11-19 13 13 12 24 26 26 13 13 14 21 23 22 9 7 9 23 24 22 9   9 25   27
09-10-19 12 13 13 22 23 23 12 13 10 24 26 26 13 13 14 22 23 23 9 7 8 22 24 22
09-09-19 9 7 10 20 20 22 12 13 11 22 23 23 11 13 9 24 26 25 14 13 13 22 23 22
09-08-19 11 8 10 15 15 19 9 7 10 21 20 21 11 13 11 22 23 21 11 13 10 23 26 25
09-07-19 7 7 10 19 20 19 10 8 9 16 15 18 9 7 10 20 20 21 11 13 9 22 23 24
09-06-19 10 9 8 19 20 19 7 7 8 19 20 20 11 8 9 15 15 17 11 7 11 20 20 20
09-05-19 10 10 11 18 19 19 9 9 9 20 20 20 8 7 7 19 20 20 11 8 9 16 15 16
09-04-19 11 12 10 19 20 19 10 10 10 18 19 19 9 9 9 19 20 20 8 7 8 19 20 21
09-03-19 15 15 15 21 22 22 10 12 10 19 20 20 9 10 10 17 19 18 10 9 9 20 20 22
09-02-19 13 14 12 23 24 24 15 15 14 20 22 21 10 12 9 19 20 19 11 10 11 19 19 19
09-01-19 8 7 9 22 24 25 13 14 12 23 24 23 15 15 14 20 22 21 10 12 10 20 20 19
Results WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
# Succ 12 10 13 12 12 9 12 11 10 8 11 11 8 7 9 10
% Succ 92.3   76.9 100.0   92.3 100.0   75.0 100.0   91.7 90.9   72.7 100.0   100.0 80.0   70.0 90.0   100.0
Ave Error 1.0   1.6 1.1   0.8 0.9   1.6 1.2   0.8 1.4   1.5 1.1   1.0 1.9   1.7 0.9   1.0
Net Error 0.5   0.7 -1.1   0.3 0.1   -0.1 -0.8   -0.1 0.1   -0.3 -1.1   -0.5 0.7   -0.1 -0.7   0.0
Std Dev 0.9   1.1 0.6   1.1 0.9   1.2 0.7   1.0 1.1   1.4 0.8   0.9 1.4   1.7 1.0   0.8