Gloucestershire 248 (Hammond 87*, McAndrew 5-63) and 121 for 4 (van Buuren 55*, Hunt 3-36) drew with Sussex 455 for 5 dec (Pujara 151, Coles 74, Alsop 67)
The weather was the only winner in the rain-ruined LV= County Championship match between Gloucestershire and Sussex at Bristol, which ended in a predictable draw.
Sussex took 13 points after dominating what play there was in the match, while Gloucestershire had to settle for six.
The final day began with Hammond and Dale looking to extend the home side's first innings and bat for as long as possible. With only a couple of overs until the second new ball, Sussex elected to start with spin at both ends and the decision should have paid quick dividends.
Hammond, unbeaten on 42 at the start, reached a 128-ball half-century with two fours off Jack Carson and then reverse swept a third boundary off James Coles. But his valuable innings should have ended on 55 when he miscued a Coles full toss to mid-on where Hunt spilled a catch above his head that should have been taken.
The total was 211 for 9 and the error cost Sussex time as well as 37 more runs as Hammond and Dale batted comfortably against the second new ball on what remained a very flat pitch. The pair had taken Gloucestershire to within two of an unlikely batting point when Dale fell lbw to Tom Haines. By then the floodlights were shining brightly under heavily overcast skies.
Hammond had suffered a painful blow attempting to pull a delivery from Hunt and the umpires were already showing concern about the light when Dale was dismissed.
It was no surprise when, with both teams out and ready to start Gloucestershire's second innings, they ruled conditions unfit for play to resume.
With heavy rain forecast during the afternoon, ground staff brought on the heavy covers. Lunch was taken and a draw seemed the only likely outcome. But on the resumption, with a possible 44 overs left to bowl, excellent opening spells by Hunt and McAndrew plunged the hosts into trouble.
Chris Dent was pinned lbw by McAndrew's second ball of the innings, while the impressive Hunt removed James Bracey, who edged a catch to wicketkeeper Oli Carter. It was almost 9 for 3 as Hammond nicked the ball at catchable height between Carter and first slip Tom Alsop.
Sussex needed to take such chances. But Hunt struck two more blows, removing Marcus Harris leg before and Hammond to another Carter catch before the weather closed in again with the total 43 for 4.
Again the covers went on and were withdrawn for a final resumption. Gloucestershire skipper van Buuren, who had entered the fray at 16 for 3 on a king pair, went on the counterattack and reached an entertaining fifty off 59 balls, with 11 fours.
Ollie Price provided solid support, but having been denied a probable victory at Worcester by rain in their previous game, van Buuren's men had cause to be grateful to the weather this time.