5/16/2024 update linked here.

* 24 hour averaged graphs used to be posted here on the 16th day, the end of the month, or within 24 hours of an event, but now I'm barely doing any "spot checks" (using my reborn Medcom "Inspector" Geiger counter). I set it to tally 100 minute counts and place it in the same outside station (painted white, 40 inches above the ground) as in the past. This might be done every day if something's going on in the world. Of course I can no longer note minute long counts of 33 (and up).

Such counts should be done at roughly the same time of day and during the warmer part of the day (in deference to the Geiger counter's electronics). Whether inside the house or inside my outdoor station, the GC remains inside a sealed ZipLoc baggy with desiccant. Geiger counters like mine tally mostly gamma rays plus maybe muons and energetic beta, but no alpha. I might catch some lower energy beta when I check an air filter in close proximity.

* My 100 minute counts are only significant to two figures, so I'm now reporting in whole percentage points (which has been the visual resolution of my posted graphs).

end of 5/3/2024 update.

~ 2021/12/26: A 100 minute count at 98% of average, starting at 13:30 hours PST (UTC/GMT minus 8 hours). We're having rainy cold days, but when I charted for temperature (and another time for rain), there was no correlation (despite the flutters seen in Germany's system during rain storms).

~ 2022/01/02: A 100 minute count at 94% of average, starting at 13:24 hours PST. Very little rain now. Solar cycle #25 is getting started plus there's a minor stream of solar wind hitting the Earth (which repels cosmic rays). Also: my long term baseline (which was done indoors) for the Medcom GC is rather dated (14.82cpm from an SBM-20 GM tube).

~ 2022/01/08: 100 min count at 99% of average, starting at 12:15 hours PST. No rain today.

~ 2022/01/21: 100 min count at 98% of average, starting at 15:15 hours PST. No rain today.

~ 2022/02/21: 100 min count at 99% of average, starting at 13:25 hours PST. Some rain today.

~ 2022/02/27: 100 min count at 88% of average, starting at 12:34 hours PST.

~ 2022/03/03: 100 min count at 92% of average, starting at 12:34 hours PST.

~ 2022/03/08: 100 min count at 90% of average, starting at 16:49 hours PST.

~ 2022/03/14: 100 min count at 93% of average, starting at 13:26 hours PDT (UTC/GMT minus 7h).

~ 2022/03/18: 100 min count at 92% of average, starting at 12:17 hours PDT.

~ 2022/03/22: 100 min count at 99% of average, starting at 12:40 hours PDT. Solar wind subsides?

~ 2022/03/27: 100 min count at 89% of average, starting at 15:40 hours PDT. Many sunspots

~ 2022/03/29: 100 min count at 91% of average, starting at 17:22 hours PDT. Solar flare @ 15:00.
              A CME due on 3/31 @ 03:00 hours UT (= 3/30 here @ 20:00 hours PDT)

~ 2022/03/30: 100 min count at 92% of average, starting at 12:42 hours PDT. There've now been
              3 recent big flares with Earthbound CMEs (corona mass ejections) from the Sun.

~ 2022/04/05: 100 min count at 90% of average, starting at 17:09 hours PDT. (Sun quite active)

~ 2022/04/12: 100 min count at 93% of average, starting at 11:01 hours PDT. (Sun quite active)

~ 2022/04/26: 100 min count at 91% of average, starting at 13:40 hours PDT. (Sun active)

~ 2022/04/29: 100 min count at 93% of average, starting at 12:20 hours PDT. (Raining)

~ 2022/05/05: 100 min count at 98% of average, starting at 10:18 hours PDT. (Raining, Sun active)

~ 2022/05/16: 100 min count at 93% of average, starting at 16:10 hours PDT. (Sun active)

~ 2022/05/23: 100 min count at 93% of average, starting at 15:35 hours PDT. (Sun not active)

~ 2022/06/11: 100 min count at 90% of average, starting at 15:41 hours PDT. (Raining, Sun active)

~ 2022/06/28: 100 min count at 96% of average, starting at 14:42 hours PDT.

~ 2022/06/30: 100 min count at 99% of average, starting at 11:05 hours PDT.

~ 2022/07/17: 100 min count at 99% of average, starting at 16:40 hours PDT. (Sunspots "153")

~ 2022/07/26: 100 min count at 94% of average, starting at 12:08 hours PDT. (Sunspots "100")

~ 2022/08/03: 100 min count at 97% of average, starting at 13:46 hours PDT. (Sunspots "031")

~ 2022/08/12: 100 min count at 93% of average, starting at 17:02 hours PDT. (Sunspots "097")

~ 2022/08/22: 100 min count at 95% of average, starting at 15:00 hours PDT. (Sunspots "056")

~ 2022/09/03: 100 min count at 98% of average, starting at 16:00 hours PDT. (Sunspots "071")

~ 2022/09/08: 100 min count at 94% of average, starting at 11:04 hours PDT. (Sunspots "073")

~ 2022/09/18: 100 min count at 100% of average, starting at 13:08 hours PDT. (Sunspots "076")

~ 2022/09/28: 100 min count at 100% of average, starting at 16:10 hours PDT. (Sunspots "110")

~ 2022/10/17: 100 min count at 101% of average, starting at 11:08 hours PDT. (Sunspots "059")

~ 2022/10/26: 100 min count at 97% of average, starting at 11:19 hours PDT, (Sunspots "072")

~ 2022/11/20: 100 min count at 94% of average, starting at 13:14 hours PST, (Sunspots "059")

~ 2022/12/03: 100 min count at 96% of average, starting at 13:53 hours PST, (Sunspots "066")

~ 2022/12/24: 100 min count at 99% of average, starting at 15:25 hours PST, (Sunspots "100") raining

~ 2023/01/09: 100 min count at 91% of average, starting at 10:27 hours PST, (Sunspots "142")
              (A NASA satalite with RTG power burned up on re-entry over the Bering Sea today.)
              (We're under threat of X-class solar flares today and an X-1.9 blew already.)
              (Solar activity suppresses cosmogenic radiation, about 10% of my counts here?)

~ 2023/01/20: 100 min count at 90% of average, starting at 15:37 hours PST, (Sunspots "166")

~ 2023/02/11: 100 min count at 95% of average, starting at 10:09 hours PST, (Sun "190" + an X-1 flare)

~ 2023/12/16: There was an X-2.8 Flare on 12/14, so I did four 100 minute counts: morning to late afternoon --trying to catch a predicted mid-day CME arrival (which didn't arrive). The four averaged 90.5% of the year 2014 average.

December - 2021

~  2nd: 33cpm peak at 18:26 hours (isolated).
~ 12th: The computer dedicated to tallying counts from my outside station suffered the Black Screen of Death, so I'm ending this series of graphs. I'll keep this and the older graphs page posted, should anyone wish to harvest data from them.

* I suggest:

> http://www.gmcmap.com/

--for the northern hemisphere and:

> http://sccc.org.au/archives/2630

--for the southern --as replacements. At these web sites you can access current readings as well as station histories, although you'll have to determine station cpms as baseline percentages on your ownmanually. (I'm not sure what the GMC station averages represent. Find out.)

See Peter Daley's list of monitoring stations as well --at:

> http://sccc.org.au/wp-content/uploads/2016/07/International-Radiation-Monitoring-Station-List.pdf

November - 2021

~ 12th: No new graph yet, but the daily average dropped to 94.6% (below my arbitrary 95% threshold) this morning. The Sun is active, but on the far side.
~ 14th: The daily average over the past (nominal) 24 hours was 94.9 this morning.
~ 17th: 33cpm peak at 21:38 hours (isolated).
~ 30th: No other threshold (33cpm) crossing peaks (or dips) as of this morning (PST/PDT).

October - 2021

September - 2021

~ 8/31: 33cpm peak at 18:04 hours (very brief build-up, saved screen).
~  3rd: 33cpm peak at 01:16 hours (isolated).
~  6th: 33cpm peak at 23:30 hours (mini build-up, saved screen).
~  8th: 33cpm peak at 10:22 hours (isolated).
~  9th: 33cpm peak at 12:06 hours (isolated).
~ 15th: 34cpm peak at 11:15 hours (isolated).
~ 30th: No other threshold (33cpm) crossing peaks as of this morning (PST/PDT).

August - 2021

July - 2021

June - 2021

May - 2021

April - 2021

March - 2021

February - 2021

January - 2021

December - 2020