LOCAL CLIMATOLOGICAL DATA
Grey Lynn
Month: 09 / 2025
Station Location: Grey Lynn, Auckland, New Zealand
Lat.-36:51:46 Long.-174:44:19
Elevation(Ground): 184. above sea level
Temperature
(Celsius)
Degree Days
Base 18 Degrees
  Snow/
Ice on
Grnd. (cm)
Rain
(mm)
Pressure
(Hpa)
Wind:Speed=kmh
D
A
Y
Max.
Min. Avg. Dep
From
Normal
Avg
Dew
pt.
Avg
Wet
Bulb
Heating Cooling Sig
Cond
Sun hrs 2400
LST
_____
Snow Fall
2400
LST
_____
Water
Equiv
Avg
Sea
Level
Avg
Spd
Avg
Dir
Max
Spd
Max
Spd
Dir
D
A
Y
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
16.9
17.7
16.8
19.4
19.9
14.5
16.6
17.9
18.3
20.1
16.7
16.7
16.4
16.9
17.7
18.8
19.4
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10.7
09.8
08.3
08.1
08.2
10.1
09.2
06.5
06.0
10.7
09.6
10.8
11.3
12.2
10.7
12.4
11.7
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13.4
12.9
11.9
12.5
13.7
12.3
12.3
11.3
10.5
14.5
12.8
13.3
13.3
14.0
13.5
15.1
15.2
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+0.4
+0.5
-0.4
+0.3
+1.6
+0.2
-0.0
-0.9
-1.6
+1.8
+0.2
+0.9
+0.4
+0.9
+0.5
+1.8
+2.1
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10.1
10.4
09.6
09.7
10.8
10.6
08.3
07.8
08.1
11.9
08.8
11.3
09.8
10.7
10.3
11.9
12.6
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11.6
11.6
10.7
11.1
12.2
11.4
10.3
09.6
09.3
13.1
10.8
12.2
11.5
12.3
11.9
13.4
13.7
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04.9
05.4
06.4
05.8
04.6
06.0
06.0
07.0
07.8
03.8
05.5
05.0
05.0
04.3
04.8
03.2
03.1
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00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
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COLD
COLD
-----
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04.0
01.7
02.7
03.9
02.4
00.2
02.9
07.6
00.9
07.0
02.6
01.8
02.7
03.0
04.0
02.1
04.2
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00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
00.0
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01.0
03.8
00.6
00.2
00.0
03.6
03.2
00.2
00.6
05.0
10.8
26.2
02.6
01.0
00.2
00.2
00.0
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1014.0
1018.1
1024.4
1028.6
1026.2
1017.0
1020.1
1024.0
1019.6
1006.6
1007.2
0997.0
1007.7
1013.1
1020.1
1023.5
1024.1
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15.4
07.9
04.8
04.1
07.6
08.7
12.7
05.0
04.8
14.9
06.5
13.7
19.6
19.7
09.3
12.1
09.2
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~239
~248
~198
~260
~316
~227
~226
~062
~297
~267
~246
~229
~238
~236
~232
~230
~267
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48.1
42.5
33.3
25.9
33.3
42.5
48.1
22.2
22.2
66.6
27.8
57.4
66.6
62.9
33.3
42.5
40.7
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~272
~252
~202
~248
~321
~207
~227
~026
~256
~272
~067
~202
~237
~257
~226
~230
~269
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1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
  17.7
20.1
9.8
06.0
13.1 +0.2 10.2 11.6 0005.2 0000.0 - Total
54.0
Total
0.0
59.2
-1.2
1017.1 10.4
+2.0
244 42.1
66.6
<Monthly Average
Degree Days
Monthly Total
Heating: 088.5
Cooling: 000.0
Max 24-hr Precip: 26.2 on Day: 12

Max Snowfall: 0.0<
  Sea Level Pressure
Max was 1030.0 on day 4
Min was 0991.1 on day 12

Wind Run 4225.4km  
  Number of days with---------> Max Temp >= 25 was 0
Max Temp <= 12 was 0
Thunderstorms: 0
Min Temp <= 7 was 2
Min Temp <= 3 was 0
Heavy fog: 0
Gale: 0
Precipitation >= 0.2mm was 15
Precipitation >= 2.5mm was 7
Snowfall >= 25mm was 0