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Geomagnetic activity in July 2003
Mean Ap19.5No. 167 of 1138
G1+ days13
G3+ days1
Max Ap5211 Jul 2003
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Jul 2003 | 5o | 19 | G1 |
| 11 Jul 2003 | 6o | 52 | G2 |
| 12 Jul 2003 | 7- | 43 | G3 |
| 15 Jul 2003 | 5o | 28 | G1 |
| 16 Jul 2003 | 6o | 48 | G2 |
| 17 Jul 2003 | 5- | 18 | G1 |
| 18 Jul 2003 | 5- | 15 | G1 |
| 19 Jul 2003 | 6- | 30 | G2 |
| 26 Jul 2003 | 6o | 33 | G2 |
| 27 Jul 2003 | 5o | 22 | G1 |
| 28 Jul 2003 | 5+ | 21 | G1 |
| 29 Jul 2003 | 5+ | 38 | G1 |
| 31 Jul 2003 | 6- | 35 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| July 2002 | 10.7 | 4 | 0 |
| July 2003 | 19.5 | 13 | 1 |
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
About this page
Mean Ap 19.5 in July 2003, No. 167 of 1138 months since 1932; 13 days reached G1 or higher.