Spring weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Period	San Francisco	Hamburg
Mar 1	13.6°C	7.6°C
Mar 8	15.0°C	8.9°C
Mar 15	14.7°C	9.4°C
Mar 22	15.5°C	11.4°C
Apr 1	16.1°C	11.6°C
Apr 8	16.5°C	12.2°C
Apr 15	16.8°C	13.6°C
Apr 22	18.4°C	13.8°C
May 1	18.5°C	14.1°C
May 8	18.6°C	17.4°C
May 15	18.1°C	18.4°C
May 22	18.9°C	19.1°C
Average	13.1°C	16.7°C

Minimum Temperatures

Period	San Francisco	Hamburg
Mar 1	8.2°C	0.8°C
Mar 8	9.0°C	2.1°C
Mar 15	8.8°C	2.1°C
Mar 22	9.2°C	3.3°C
Apr 1	9.6°C	3.2°C
Apr 8	9.5°C	4.3°C
Apr 15	9.9°C	3.9°C
Apr 22	10.8°C	4.8°C
May 1	10.7°C	5.5°C
May 8	11.0°C	7.5°C
May 15	11.2°C	9.1°C
May 22	11.4°C	9.6°C
Average	4.7°C	9.9°C

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	San Francisco	Hamburg
Mar 1	4.5 hours/day	4.3 hours/day
Mar 8	5.7 hours/day	2.4 hours/day
Mar 15	5.2 hours/day	3.5 hours/day
Mar 22	6.4 hours/day	4.3 hours/day
Apr 1	6.1 hours/day	3.7 hours/day
Apr 8	9.1 hours/day	2.1 hours/day
Apr 15	8.3 hours/day	6.2 hours/day
Apr 22	9.3 hours/day	3.9 hours/day
May 1	10.3 hours/day	4.1 hours/day
May 8	10.8 hours/day	6.5 hours/day
May 15	10.1 hours/day	4.3 hours/day
May 22	10.8 hours/day	5.1 hours/day
Average	4.2 hours/day	8.0 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Period	San Francisco	Hamburg
Mar 1	2.8mm	1.4mm
Mar 8	4.7mm	3.4mm
Mar 15	3.4mm	1.7mm
Mar 22	2.6mm	2.1mm
Apr 1	2.3mm	2.3mm
Apr 8	0.8mm	1.9mm
Apr 15	0.9mm	1.0mm
Apr 22	0.1mm	1.8mm
May 1	0.8mm	1.7mm
May 8	0.1mm	1.8mm
May 15	1.2mm	2.5mm
May 22	0.2mm	2.4mm
Average	2.0mm	1.7mm

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	San Francisco	Hamburg
Mar 1	20.6km/h	18.2km/h
Mar 8	19.2km/h	21.1km/h
Mar 15	17.4km/h	20.4km/h
Mar 22	20.1km/h	18.0km/h
Apr 1	19.7km/h	20.0km/h
Apr 8	20.1km/h	20.0km/h
Apr 15	18.2km/h	18.0km/h
Apr 22	19.5km/h	18.5km/h
May 1	19.7km/h	19.7km/h
May 8	19.6km/h	18.0km/h
May 15	21.3km/h	18.1km/h
May 22	19.3km/h	18.1km/h
Average	19.0km/h	19.6km/h

Humidity

Period	San Francisco	Hamburg
Mar 1	73.1%	77.9%
Mar 8	75.2%	78.5%
Mar 15	74.9%	73.7%
Mar 22	73.4%	75.0%
Apr 1	72.3%	75.7%
Apr 8	72.1%	76.7%
Apr 15	73.2%	72.3%
Apr 22	72.4%	75.0%
May 1	71.8%	76.8%
May 8	72.7%	74.7%
May 15	74.7%	78.2%
May 22	74.7%	77.8%
Average	76.0%	73.4%

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Astronomy

Sunrise Time

Period	San Francisco	Hamburg
Mar 1	6:37	7:01
Mar 8	6:52	6:44
Mar 15	7:16	6:27
Mar 22	7:03	6:24
Apr 1	6:50	6:46
Apr 8	6:40	6:29
Apr 15	6:30	6:13
Apr 22	6:19	5:56
May 1	6:10	5:40
May 8	6:03	5:26
May 15	5:58	5:15
May 22	5:52	5:04
Average	6:06	6:30

Sunrise times are output in the local timezone of each place.

Sunset Time

Period	San Francisco	Hamburg
Mar 1	18:07	18:04
Mar 8	18:39	18:17
Mar 15	19:20	18:29
Mar 22	19:28	19:03
Apr 1	19:36	20:01
Apr 8	19:42	20:14
Apr 15	19:49	20:26
Apr 22	19:56	20:41
May 1	20:03	20:56
May 8	20:10	21:08
May 15	20:16	21:20
May 22	20:22	21:32
Average	20:00	19:36

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	San Francisco	Hamburg
Mar 1	11:07 hours	11:03 hours
Mar 8	11:39 hours	11:17 hours
Mar 15	12:04 hours	11:29 hours
Mar 22	12:25 hours	12:03 hours
Apr 1	12:36 hours	13:01 hours
Apr 8	12:42 hours	13:14 hours
Apr 15	12:49 hours	13:26 hours
Apr 22	12:56 hours	13:41 hours
May 1	13:03 hours	13:56 hours
May 8	13:10 hours	14:08 hours
May 15	13:16 hours	14:20 hours
May 22	13:22 hours	14:32 hours
Average	13:00 hours	12:36 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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Spring weather

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