STATISTICS from CTO Weather Centre - January, 2025
MONTHLY SUMMARY: MEANS AND TOTALS:
Reading
Mean
Normal
RecHi
YY
RecLo
YY
High Temp
2023
2004
Low Temp
2023
2004
Mean Temp
2023
2004
Dew Point
2023
2014
Relative Humidity
74
%
60
%
83
%
2023
35
%
2014
Barometric Pressure
2020
2017
Winds
2021
2002
- from
SW
E
N
N
Total Reading
Total
Normal
RecMost
YY
RecLeast
YY
Rain
2014
2017
Snow
2023
2023
- Water Equivalent
2023
2016
Precipitation
2023
2017
Sunshine
53
h
83
h
234
h
2016
0
h
2002
MONTHLY SUMMARY: SINGLE-DAY EXTREMES AND RECORDS:
Reading
Highest
DD
Lowest
DD
RecHi
YY-DD
RecLo
YY-DD
High Temp
01
08
2019-19
2014-02
Low Temp
01
08
2007-05
2019-31
Humidex
17
2023-12
Wind Chill
08
2018-06
Dew Point
01
08
2023-12
2019-31
Relative Humidity
98
%
01
41
%
10
100
%
2023-01
1
%
2019-01
Barometric Pressure
15
01
2020-09
2024-10
Winds
14
2018-15
- from
S
W
Daily Total
Most
DD
RecMost
YY-DD
Rain
09
2014-20
Snow
16
2022-17
- Water Equivalent
16
2022-17
Precipitation
16
2022-17
Sunshine
08:35
h
10
16:00
h
2015-23
Daily Mean
Highest
DD
Lowest
DD
RecHi
YY-DD
RecLo
YY-DD
Temperature
01
08
2023-23
2019-31
Dew Point
01
08
2023-23
2014-25
Relative Humidity
89
%
01
58
%
10
100
%
2023-01
16
%
2014-24
Barometric Pressure
15
01
2020-09
2013-20
Winds
02
06
2024-13
2002-01
- from
W
W
W
N
EVENTS THIS MONTH (13):
New Year's Day - January 1 @ 00:00
Happy New Year! The year 2025 begins.
Toronto Snowstorms - January 2 @ 00:00
A series of blizzards whallopped Toronto with nearly a metre of snow, starting on this day in 1999. Mayor Mel Lastman famously called out the Army to assist, as people ran out of places to put all of the snow.
Great Ice Storm of 1998 - January 4 @ 00:00
On this day, in 1998, a days-long period of freezing rain hit Eastern Ontario, southern Quebec, New Brunswick and Nova Scotia. Power lines were torn down, transmission and radio towers toppled. In response, Canada saw its largest military deployment since the Korean War, and a massive reconstruction effort was launched to rebuild the grid. Many grateful Ontarians will remember the convoy of Con Edison vehicles from Michigan, coming to help. In the end, up to 5% of the forest cover was lost in the storm, and there were billions of dollars in damage.
First Quarter - January 6 @ 08:56
A waxing half-Moon is near the meridian (halfway across the sky) as the Sun sets.
Stephen Hawking born - January 8 @ 00:00
On this day in 1942 (83 years ago), legendary British physicist Stephen Hawking was born in Oxford, UK. His work on such subjects as time, cosmology and black holes helped to revolutionize the way we look at the Universe. Diagnosed with ALS (Lou Gehrig's disease), he spent the last four decades of his life confined to a wheelchair, eventually communicating with a synthesized voice.
London Underground - January 10 @ 00:00
On this day in 1863, London's Underground was launched, with a line initially between Paddington and Farrington.
Full Moon - January 13 @ 07:26
The Moon is most-opposite the Sun in the sky, rising as the sun sets.
Last Quarter - January 21 @ 00:30
A waning half-Moon is near the meridian (halfway across the sky) as the Sun rises.
Space Shuttle Challenger lost this day - January 26 @ 00:00
The anniversary of the destruction of Space Shuttle Challenger and her seven-member crew, in 1986 (39 years ago). The loss of the orbiter and seven astronauts shortly after launch rocked NASA to the core and caused a serious shift in thinking. The cause was a gasket in the solid-rocket booster, rendered inflexible because of the unusual cold at the launchpad that morning. A gap in the gasket led to flames cutting into the shuttle's external fuel tank; the explosive force was considered equal to that of a small atomic bomb. This accident was more-widely blamed on a complacent culture at NASA.
Apollo 204 lost this day - January 27 @ 00:00
On this day, in 1967, a fire during a launchpad test killed the three astronauts of Apollo 1 (officially designated Apollo 204). The accident led to changes in the materials used in Apollo spacecraft and a substantial redesign of the main hatch. An official enquiry concluded that the fire was caused by frayed electrical insulation, coupled with the all-oxygen atmosphere in the Command Module. It served as a wake-up call to NASA and was largely blamed on the so-called "Go Fever" culture at the agency at that time.
New Moon - January 28 @ 21:35
The Moon is nearest the Sun in the sky and cannot be seen from the ground.
Perihelion - January 3 @ 19:28
Earth is closest to the Sun in its slightly-elliptical orbit.
Comet Hyakutake discovered - January 31 @ 00:00
On this day in 1996, Comet Hyakutake was discovered, by Yuji Hyakutake. During its brief visit, it put on a first-class show, spreading its tail clear across the northern sky. It has become known as the Great Comet of 1996.
Daily Temperatures This Month:
Daily Precipitation This Month:
This Month:
Day
High
Low
Mean
MxHx
MnWC
AvRH
AvDP
AvBP
Prec
Sunrise
Sunset
Sun
Moon
Winds
1
89%
07:43
16:31
01:38 h
Waxing Crescent
E @
2
82%
07:43
16:32
01:30 h
Waxing Crescent
W @
3
74%
07:43
16:33
02:50 h
Waxing Crescent
W @
4
75%
07:43
16:34
02:00 h
Waxing Crescent
W @
5
70%
07:42
16:35
05:05 h
Waxing Crescent
W @
6
72%
07:42
16:36
01:10 h
Waxing Crescent
W @
7
71%
07:42
16:37
03:55 h
First Quarter
W @
8
72%
07:42
16:38
01:25 h
Waxing Gibbous
W @
9
66%
07:41
16:39
07:00 h
Waxing Gibbous
W @
10
58%
07:41
16:40
08:35 h
Waxing Gibbous
W @
11
69%
07:41
16:42
01:35 h
Waxing Gibbous
W @
12
79%
07:40
16:43
00:50 h
Waxing Gibbous
W @
13
88%
07:40
16:44
00:40 h
Waxing Gibbous
W @
14
77%
07:39
16:45
01:20 h
Full
W @
15
72%
07:39
16:47
07:45 h
Waning Gibbous
W @
16
76%
07:38
16:48
01:35 h
Waning Gibbous
W @
17
76%
07:37
16:49
04:20 h
Waning Gibbous
E @
18
72%
07:37
16:50
00:00 h
Waning Gibbous
WNW @
19
n/a%
07:36
16:52
n/a h
Waning Gibbous
n/a @
20
n/a%
07:35
16:53
n/a h
Waning Gibbous
n/a @
21
n/a%
07:34
16:55
n/a h
Waning Gibbous
n/a @
22
n/a%
07:34
16:56
n/a h
Last Quarter
n/a @
23
n/a%
07:33
16:57
n/a h
Waning Crescent
n/a @
24
n/a%
07:32
16:59
n/a h
Waning Crescent
n/a @
25
n/a%
07:31
17:00
n/a h
Waning Crescent
n/a @
26
n/a%
07:30
17:02
n/a h
Waning Crescent
n/a @
27
n/a%
07:29
17:03
n/a h
Waning Crescent
n/a @
28
n/a%
07:28
17:04
n/a h
Waning Crescent
n/a @
29
n/a%
07:27
17:06
n/a h
New
n/a @
30
n/a%
07:26
17:07
n/a h
Waxing Crescent
n/a @
31
n/a%
07:25
17:09
n/a h
Waxing Crescent
n/a @
January
74%
53 h
SW @
Normals
60%
-14.9°C
1016.0 mb
83 h
E @ 1 km/h
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